Chapter 8. Chemical Equations. Flames and sparks result when aluminum foil is dropped Into liquid bromine.
|
|
- Letitia Hopkins
- 5 years ago
- Views:
Transcription
1 Chapter 8 Chemical Equations Flames and sparks result when aluminum foil is dropped Into liquid bromine. Introduction to General, Organic, and Biochemistry 10e John Wiley & Sons, Inc Morris Hein, Scott Pattison, and Susan Arena
2 Chapter Outline 8.1 The Chemical Equation 8.2 Writing and Balancing Chemical Equations 8.3 Information in a Chemical Equation 8.4 Types of Chemical Equations 8.5 Heat in Chemical Reactions 8.6 Global Warming: The Greenhouse Effect
3 The Chemical Equation Chemical shorthand for a chemical reaction. 4Al (s) + 3O 2(g) 2Al 2 O 3(s) 1. Reactants Products 2. Whole number coefficients indicate numbers of each substance participating in the reaction. 3. Special conditions for the reaction are often written over the arrow. (Δ means heat is supplied to the reaction.) 4. Physical states of each substance are indicated.
4 The Chemical Equation Mg (s) + 2HCl (aq) NaOH (aq) + HCl (aq) H 2(g) + MgCl 2(aq) H 2 O (l) + NaCl (aq)
5 Your Turn! In the reaction: CuSO 4 + BaBr 2 CuBr 2 + BaSO 4 a. BaBr 2 and BaSO 4 are reactants b. BaSO 4 and CuBr 2 are products c. CuSO 4 and BaSO 4 are reactants d. CuSO 4 and BaBr 2 are products
6 Writing and Balancing Chemical Equations A balloon filled with a hydrogen and oxygen gas explodes when heated. The product is water vapor. 1. Identify the reaction Hydrogen gas + oxygen gas water gas 2. Write the unbalanced equation H 2(g) + O 2(g) H 2 O (g) 3. Balance the equation 2 H 2(g) + O 2(g) 2 H 2 O (g) A balanced equation has the same number of each kind of atom on each side of the equation. R = reactants P = products R 24 H 2 O P 2 4 H 12O O
7 Writing and Balancing Chemical Equations Phosphorus burns in air to produce diphosphorus pentoxide. 1. Identify the reaction phosphorus + oxygen diphosphorus pentoxide 2. Write the unbalanced equation P 4 + O 2 P 2 O 5 3. Balance the equation P O 2 2 P 2 O 5 Hint: Start with most complex compound. R 4 P P 42 P 210 O 10 5 O
8 Your Turn! Given the unbalanced equation: HCl + NH 3 NH 4 Cl When properly balanced, the sum of the balancing coefficients is a. 7 b. 5 c. 3 d. 4 e. 6 HCl + NH 3 NH 4 Cl
9 Your Turn! Given the unbalanced equation: NH 3 H 2 + N 2 When properly balanced, the sum of the balancing coefficients is a. 3 b. 6 c. 9 d. 12 2NH 3 3H 2 + N 2
10 Writing and Balancing Chemical Equations Zinc metal reacts with silver nitrate to produce zinc nitrate and silver metal. 1. Identify the reaction zinc + silver nitrate zinc nitrate + silver 2. Write the unbalanced equation Zn + AgNO 3 Zn(NO 3) 2 + Ag 3. Balance the equation 1 1 Zn + 2 AgNO 3 Zn(NO 3) Ag R 1 Zn 2 Ag 2 NO 3 Hint: Balance polyatomic ions as a unit. P 1 Zn 12 Ag 2 NO 3
11 Your Turn! Given the unbalanced equation: Co + CuSO 4 Co 2 (SO 4 ) 3 + Cu When properly balanced, the sum of the balancing coefficients is a. 6 b. 7 c. 8 d. 9 e. 10 2Co + 3CuSO 4 Co 2 (SO 4 ) 3 + 3Cu
12 Your Turn! Given the unbalanced equation: Al(OH) 3 + H 2 SO 4 Al 2 (SO 4 ) 3 + H 2 O When properly balanced, the sum of the balancing coefficients is a. 4 b. 9 c. 12 d. 24 2Al(OH) 3 + 3H 2 SO 4 Al 2 (SO 4 ) 3 + 6H 2 O
13 Writing and Balancing Chemical Equations Ethylene burns in air to produce carbon dioxide and water. 1. Identify the reaction ethylene + oxygen carbon dioxide + water 2. Write the unbalanced equation C 2 H + O 4 2 CO 2 + H 2 O 3. Balance the equation C 2 H + O CO H 2 O Hint: Balance hydrogen and oxygen last. R 2 C 4 H 26 O P 1 2 C 24 H O
14 Acetylene (C 2 H 2 ) burns in air to produce carbon dioxide and water. 1. Identify the reaction acetylene + oxygen carbon dioxide + water 2. Write the unbalanced equation C 2 H + O 2 2 CO 2 + H 2 O 3. Balance the equation C 2 H + 5 2( O CO 2 + H 2 O ) 2 R 24 C 24 H O P 1 24C C 24 H O Hint: Use a fraction to balance O, then multiply all coefficients by two to eliminate the fraction. 2 C 2 H O 2 4 CO H 2 O
15 Your Turn! Given the unbalanced equation: C 2 H 6 + O 2 CO 2 + H 2 O When properly balanced, the sum of the balancing coefficients is a. 23 b. 19 c. 17 d. 9 e. 13 2C 2 H 6 + 7O 2 4CO 2 + 6H 2 O
16 Your Turn! Given the unbalanced equation: C 3 H 8 + O 2 CO 2 + H 2 O When properly balanced, the sum of the balancing coefficients is a. 7 b. 9 c. 15 d. 23 e. 13 C 3 H 8 + 5O 2 3CO 2 + 4H 2 O
17 Information in a Chemical Equation
18 Information in a Chemical Equation H 2(g) + F 2(g) 2HF(g) 1 molecule 1 molecule 2 molecules 2 atoms H 2 atoms F 2 atoms H + 2 atoms F 1 mol H 2 1 mol F 2 2 mol HF How many moles of HF can be made from 2 moles of hydrogen gas and 2 moles of fluorine gas? 4 moles of hydrogen fluoride gas
19 Your Turn! How many molecules of oxygen gas are needed to burn 2 molecules of propane according to the balanced equation? C 3 H 8 + 5O 2 3CO 2 + 4H 2 O a. 5 molecules of oxygen b. 6 molecules of oxygen c. 10 molecules of oxygen d. 15 molecules of oxygen
20 Types of Chemical Equations 1. Combination Reactions A + B AB 2. Decomposition Reactions AB A + B 3. Single-Displacement A + BC B + AC or A + BC C + BA 4. Double-Displacement A B+ CD AD + CB
21 Combination Reactions 1. metal + oxygen metal oxide A + B AB 2Mg (s) + O 2(g) 2MgO (s) 4Fe (s) + 3O 2(g) 2Fe 2 O 3(s) 2. nonmetal + oxygen nonmetal oxide C (s) + O 2(g) CO 2(g) 2N 2(s) + O 2(g) 2N 2 O (g)
22 Combination Reactions 3. metal + nonmetal salt A + B AB 2Al (s) + 3Br 2(l) 2AlBr 3(s) 2K (s) + I 2(s) 2KI (s) 4. metal oxide + water metal hydroxide K 2 O (s) + H 2 O (l) 2KOH (aq) SrO (s) + H 2 O (l) Sr(OH) 2(aq)
23 Combination Reactions 5. nonmetal oxide + water oxy-acid A + B AB SO 3(g) + H 2 O (l) H 2 SO 4(aq) P 2 O 5(s) + 3H 2 O (l) 2H 3 PO 4(aq) N 2 O 5(s) + H 2 O (l) 2HNO 3(aq)
24 Decomposition Reactions 1. Metal oxides decompose into metals and oxygen gas. 2HgO (s) 2Hg (l) + O 2(g) AB A + B 2PbO 2(s) 2PbO (s) + O 2(g) 2. Metal carbonates form metal oxides and CO 2. Na 2 CO 3(s) Na 2 O + CO 2(g) 3. Metal bicarbonates form metal carbonates, CO 2 and H 2 O. NaHCO 3(s) Na 2 CO 3(s) + CO 2(g) + H 2 O (g)
25 Decomposition Reactions 4. Other examples: AB A + B 2Hg 2 O 2(aq) 2NaClO 3(s) 2H 2 O (l) + O 2(g) 2NaCl (s) + 3O 2(g)
26 Single Displacement Reactions If A is a metal: A + BC B + AC If A is a nonmetal: A + BC C + BA Zn (s) + 2HCl (aq) ZnCl 2(aq) + H 2(g) When pieces of zinc metal are placed in hydrochloric acid, hydrogen bubbles form immediately.
27 Activity Series More active elements can replace less active elements. 2Al (s) + 3CuCl 2(aq) 2AlCl 3(aq) + 3Cu (s) Hg (l) + CuSO 4(aq) no reaction
28 Your Turn! Consider the following reactions: A (s) + HCl (aq) no reaction B (s) + 2HCl (aq) BCl 2(aq) + H 2(g) What is the correct activity series? a. least active A < B < H most active b. least active A < H < B most active c. least active B < H < A most active
29 Single Displacement Reactions 1. Metal + acid H 2 + salt Fe (s) + 2HCl (aq) FeCl 2(aq) + H 2 (g) Cu(s) + HCl(aq) no reaction 2. metal + water H 2 + metal oxide or metal hydroxide 2K (s) + 2H 2 O (l) 2KOH (aq) + H 2 (g) 3Fe (s) + 4H 2 O (g) Fe 3 O 4(s) + 4H 2 (g)
30 Single Displacement Reactions 3. Metal + salt metal + salt Sn (s) + 2AgNO 3(aq) Sn(NO 3 ) 2(aq) + Ag (s) Zn (s) + AlCl 3(aq) no reaction 4. halogen + halide salt halogen + halide salt F 2(g) + 2NaCl (aq) 2NaF (aq) + Cl 2 (g) I 2(s) + 2NaCl (aq) no reaction
31 Your Turn! The reaction: Ba (s) + PtCl 2(aq) BaCl 2(aq) + Pt (s), will occur if a. Pt is more active than Ba b. Ba is more active than Pt c. Ba is more active than O d. O is more active than Pt
32 Your Turn! The likely products of the reaction between Al and NiCl 2 are a. AlNi and Cl 2 b. AlCl 2 and Ni c. AlCl and Ni d. AlCl 3 and Ni e. no reaction
33 Double Replacement Reactions A B+ CD AD + CB Cations exchange anions Pb(NO 3 ) 2(aq) + 2KI (aq) PbI 2(s) + 2KNO 3(aq) Evidence of chemical change: 1. Evolution of heat 2. Formation of precipitate 3. Formation of gas bubbles
34 Neutralization Reactions Double replacement: A B+ CD AD + CB acid + base salt + water + heat HCl (aq) + NaOH (aq) NaCl (aq) + H 2 O (l) Detected by increase in temperature (release of heat). H 2 SO 4(aq) + Ba(OH) 2(aq) BaSO 4(s) + 2H 2 O (l) Detected by increase in temperature and formation of a cloudy precipitate.
35 Metal Oxide + Acid Reactions Double replacement: A B+ CD AD + CB metal oxide + acid salt + water Heat is released by the production of water ZnO (s) + 2HCl (aq) ZnCl 2(aq) + H 2 O (l) Na 2 O (s) + 2HCl (aq) 2NaCl (aq) + H 2 O (l)
36 Precipitation Reactions Double replacement: A B+ CD AD + CB An insoluble product (precipitate) is formed and indicated by placing an (s) after its formula in the equation. Check the solubility table in Appendix V to see if a precipitate forms. BaCl 2(aq) + Na 2 SO 4(aq) BaSO 4(s) + 2NaCl (aq) 2NaCl (aq) + Hg 2 (NO 3 ) 2(aq) 2NaNO 3(aq) + Hg 2 Cl 2(s)
37 Gas Forming Reactions Double replacement: A B+ CD AD + CB NaCl (s) + H 2 SO 4(l) NaHSO 4(s) + HCl (g) Na 2 S (aq) + 2HCl (aq) H 2 S (g) + 2NaCl (s) H 2 SO 4(aq) + 2NaCN (aq) Na 2 SO 4(aq) + 2HCN (g) Double replacement reactions that form H 2 CO 3, H 2 SO 3 or NH 4 OH are quickly followed by the decomposition of these compounds into gases (indirect gas production).
38 Indirect Gas Forming Reactions metal carbonate + acid salt + CO 2(g) + H 2 O (l) Na 2 CO 3(aq) + 2HCl (aq) 2NaCl (aq) + CO 2(g) + H 2 O (l) metal sulfite + acid salt + SO 2(g) + H 2 O (l) Na 2 SO 3(aq) + 2HCl (aq) 2NaCl (aq) + SO 2(g) + H 2 O (l) ammonium salt + base salt + NH 3(g) + H 2 O (l) NH 4 NO 3(aq) + NaOH (aq) NaNO 3(aq) + NH 3(g) + H 2 O (l)
39 Your Turn! What are the likely products of the reaction of copper(ii) oxide with nitric acid? a. CuNO 3 + H 2 O b. Cu(NO 3 ) 2 + H 2 O c. Cu(NO 2 ) 2 + H 2 O d. CuNO 2 + H 2 O CuO (s) + 2HNO 3(aq) Cu(NO 3 ) 2(aq) + H 2 O (l)
40 Your Turn! What are the likely products of the reaction of sodium sulfide with iron(iii) chloride? a. FeS + NaCl b. FeS 3 + NaCl c. Fe 3 S + NaCl d. Fe 2 S 3 + NaCl 2FeCl 3(aq) + 3Na 2 S (aq) Fe 2 S 3(s) + 6NaCl (aq)
41 Your Turn! What are the likely products of the reaction of sodium hydrogen carbonate with hydrochloric acid? a. NaCl + H 2 CO 3 b. NaCl + H 2 O + CO 2 c. NaCl + H 2 O + CO 3 d. NaCl + H 2 + CO 3 NaHCO 3(aq) + HCl (aq) NaCl (aq) + H 2 O (l) + CO 2(g)
42 Heat in Chemical Reactions Endothermic reactions absorb heat O 2(g) + N 2(g) kj 2NO (g) Exothermic reactions release heat 2 Al (s) + Fe 2 O 3(s) 2Fe (s) + Al 2 O 3(s) kj The amount of heat absorbed or released is the heat of reaction.
43 Endothermic Reactions
44 Exothermic Reactions
45 Your Turn! Consider the reaction: H 2 + I kj 2 HI. When one mole of HI is produced A kj of energy is absorbed B. 6.3 kj of energy is absorbed C kj of energy is released D. 6.3 kj of energy is released
46 Global Warming: The Greenhouse Effect
47 Global Warming: The Greenhouse Effect Increased carbon dioxide levels have caused a 0.74 C rise in global temperatures over the last 100 years.
8 Chemical Equations. Flames and sparks result when aluminum foil is dropped into liquid bromine.
8 Chemical Equations Flames and sparks result when aluminum foil is dropped into liquid bromine. Chapter Outline 8.1 The Chemical Equation 8.2 Writing and Balancing Chemical Equations 8.3 Types of Chemical
More informationCHEMICAL REACTIONS. Types of Reactions. Steps to Writing Reactions
Types of Reactions CHEMICAL REACTIONS There are five types of chemical reactions we will talk about: 1. Synthesis reactions 2. reactions 3. Single displacement reactions 4. reactions 5. Combustion reactions
More informationReaction Writing Sheet #1 Key
Reaction Writing Sheet #1 Key Write and balance each of the following reactions and indicate the reaction type(s) present: 1. zinc + sulfur zinc sulfide 8 Zn (s) + S 8 (s) 8 ZnS (s) synthesis 2. potassium
More informationTypes of Reactions. There are five types of chemical reactions we observed in the lab:
Chemical Reactions Acids and Bases Acids: Form hydrogen ions (H + ) when dissolved in water. HCl (aq) H + (aq) + Cl - (aq) Examples: HCl (hydrochloric acid), HNO 3 (nitric acid), H 2 SO 4 (sulfuric acid),
More informationTypes of Reactions. There are five main types of chemical reactions we will talk about:
Chemical Reactions Types of Reactions There are five main types of chemical reactions we will talk about: 1. Synthesis reactions 2. Decomposition reactions 3. Single displacement reactions 4. Double displacement
More informationBalancing Equations Notes
. Unit 6 Chemical Equations and Reactions What is a Chemical Equation? A Chemical Equation is a written representation of the process that occurs in a chemical reaction. A chemical equation is written
More informationCHEMICAL REACTIONS. Introduction. Chemical Equations
CHEMICAL REACTIONS Chemistry I Chapter 7 1 Chemical Equations Their Job: Depict the kind of reactants and products and their relative amounts in a reaction. 4 Al (s) + 3 O 2 (g) ---> 2 Al 2 O 3 (s) The
More informationBalancing Equations Notes
. Unit 9 Chemical Equations and Reactions What is a Chemical Equation? A Chemical Equation is a written representation of the process that occurs in a chemical reaction. A chemical equation is written
More informationBalancing CHEMICAL EQUATIONS
Balancing CHEMICAL EQUATIONS CHEMICAL REACTIONS involves a chemical change in the identity of one or more chemical species Ex. Rusting of iron (Fe): chemical rxn btwn water and iron involve the breaking
More informationChemical Reactions and Equations
Chemical Reactions and Equations 5-1 5.1 What is a Chemical Reaction? A chemical reaction is a chemical change. A chemical reaction occurs when one or more substances is converted into one or more new
More informationTypes of Chemical Reactions (rxns.)
Types of Chemical Reactions (rxns.) Introduction Chemical reactions occur when bonds (between the electrons of atoms) are formed or broken Chemical reactions involve changes in the chemical composition
More informationCHEMICAL REACTION. Engr. Yvonne Ligaya F. Musico 1
CHEMICAL REACTION Engr. Yvonne Ligaya F. Musico 1 Chemical Reaction Engr. Yvonne Ligaya F. Musico 2 Introduction Chemical reactions occur when bonds between the outermost parts of atoms are formed or broken
More informationBalancing Equations Notes
. Unit 9 Chemical Equations and Reactions What is a Chemical Equation? A is a written representation of the process that occurs in a chemical reaction. A chemical equation is written with the (starting
More informationTYPES OF CHEMICAL REACTIONS SYNTHESIS (COMPOSITION), DECOMPOSITION AND REPLACEMENT (SINGLE AND DOUBLE), AND COMBUSTION
TYPES OF CHEMICAL REACTIONS SYNTHESIS (COMPOSITION), DECOMPOSITION AND REPLACEMENT (SINGLE AND DOUBLE), AND COMBUSTION YOU CAN THINK OF ATOMS AS PEOPLE GETTING TOGETHER AS COUPLES... Analogy One person
More informationCHAPTER 8 CHEMICAL REACTIONS AND EQUATIONS
CHAPTER 8 CHEMICAL REACTIONS AND EQUATIONS CHEMICAL REACTIONS Occurs when matter combines or breaks apart to produce new kinds of matter with different properties with a change in energy. EVIDENCE FOR
More informationUnit 1 - Foundations of Chemistry
Unit 1 - Foundations of Chemistry Chapter 2 - Chemical Reactions Unit 1 - Foundations of Chemistry 1 / 42 2.1 - Chemical Equations Physical and Chemical Changes Physical change: A substance changes its
More information7.01 Chemical Reactions
7.01 Chemical Reactions The Law of Conservation of Mass Dr. Fred Omega Garces Chemistry 100 Miramar College 1 Chemical Reactions Making Substances Chemical Reactions; the heart of chemistry is the chemical
More informationUnit 5: Chemical Equations and Reactions & Stoichiometry
pg. 10 Unit 5: Chemical Equations and Reactions & Stoichiometry Chapter 8: Chemical Equations and Reactions 8.1: Describing Chemical Reactions Selected Chemistry Assignment Answers (Section Review on pg.
More informationCHAPTER Describing Chemical Reactions Reactants Products. New substances produced The arrow means yields TYPES OF EQUATIONS.
CHAPTER 11 Chemical Reactions 11.1 Describing Chemical Reactions Reactants Products New substances produced The arrow means yields Where do Chemical Reactions occur? Everywhere!!! In living organisms In
More informationUnit 4: Reactions and Stoichiometry
Unit 4: Reactions and Stoichiometry Reactions Chemical equation Expression representing a chemical reaction Formulas of reactants on the left side Formulas of products on the right side Arrow(s) connect(s)
More informationCHEMICAL REACTIONS WORDS, SYMBOLS AND ABBREVIATIONS
CHEMICAL REACTIONS All chemical reactions have two parts: (1) A substance that undergoes a reaction is called a. In other words, reactants are the substances you start with. (2) When reactants undergo
More information7.01 Chemical Reactions
7.01 Chemical Reactions The Law of Conservation of Mass Dr. Fred Omega Garces Chemistry 152 Miramar College 1 Chemical Reactions Making Substances Chemical Reactions; the heart of chemistry is the chemical
More informationChemical Equations and Chemical Reactions
Chemical Equations Chemical Equations and Chemical Reactions Chemical equations are concise representations of chemical reactions. Chemical Equations Symbols Used in Chemical Equations The formulas of
More information4.02 Chemical Reactions
4.02 Chemical Reactions The Law of Conservation of Mass Dr. Fred Omega Garces Chemistry 111 Miramar College 1 Chemical Reactions Making Substances Chemical Reactions; the heart of chemistry is the chemical
More informationCh 7 Chemical Reactions Study Guide Accelerated Chemistry SCANTRON
Ch 7 Chemical Reactions Study Guide Accelerated Chemistry SCANTRON Name /80 TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. Correct the False statments by changing the
More informationWRITING CHEMICAL EQUATIONS 2002, 1989 by David A. Katz. All rights reserved. Permission for classroom used provided original copyright is included.
WRITING CHEMICAL EQUATIONS 2002, 1989 by David A. Katz. All rights reserved. Permission for classroom used provided original copyright is included. David A. Katz Chemist, Educator, Science Communicator,
More informationSolubility Rules See also Table 4.1 in text and Appendix G in Lab Manual
Ch 4 Chemical Reactions Ionic Theory of Solutions - Ionic substances produce freely moving ions when dissolved in water, and the ions carry electric current. (S. Arrhenius, 1884) - An electrolyte is a
More informationChapter 9. Vocabulary Ch Kick Off Activity. Objectives. Interpreting Formulas. Interpreting Formulas
Chapter 9 Chemical Vocabulary Ch. 9.1 Chemical reaction Reactant Product Word Equation Skeleton Equation Chemical equation Coefficient 1 2 Objectives Write chemical equations to describe chemical reactions
More informationChapter 7: Chemical Reactions
C h a p t e r 7, C h a p t e r 1 6 ( 2-5 ) : C h e m i c a l R e a c t i o n s P a g e 1 Chapter 7: Chemical Reactions Read Chapter 7 and Check MasteringChemistry due dates. Evidence of Chemical Reactions:
More informationAqueous Reactions. The products are just the cation-anion pairs reversed, or the outies (A and Y joined) and the innies (B and X joined).
Aqueous Reactions Defining Aqueous Reactions Aqueous reactions are reactions that take place in water. To understand them, it is important to understand how compounds behave in water. Some compounds are
More informationBALANCING EQUATIONS NOTES
BALANCING EQUATIONS NOTES WHY DO WE NEED TO BALANCE CHEMICAL EQUATIONS? The LAW OF CONSERVATION OF MASS says that matter cannot be created or destroyed. In other words, you cannot end up with any more
More informationChapter 8 Chemical Reactions
Chemistry/ PEP Name: Date: Chapter 8 Chemical Reactions Chapter 8: 1 7, 9 18, 20, 21, 24 26, 29 31, 46, 55, 69 Practice Problems 1. Write a skeleton equation for each chemical reaction. Include the appropriate
More informationUnit 8 Chemical Reactions- Funsheets
Part A- Balancing Equations and Types of Reactions Balance AND identify the following reactions: Unit 8 Chemical Reactions- Funsheets 1) Mg + Zn(NO 3) 2 Zn Mg(NO 3) 2 2) Ba + AgNO 3 Ag + Ba(NO 3) 2 3)
More informationBalancing Equations Notes
. Unit 7 Chemical Equations and Reactions What is a Chemical Equation? A is a written representation of the process that occurs in a chemical reaction. A chemical equation is written with the (starting
More informationElectrodeposition. - Worksheet - Envisioning Chemistry. 1. Write half reactions for the following processes under electrical current.
Electrodeposition 1. Write half reactions for the following processes under electrical current. (1). Formation of copper from copper (II) ion Example: Cu 2+ + 2e --> Cu (2). Formation of tin from tin ion
More informationCh. 8 Chemical Reactions
Ch. 8 Chemical Reactions Intro to Reactions I II III IV V Signs of a Chemical Reaction Evolution of heat and light Formation of a gas Formation of a precipitate Color change Law of Conservation of Mass
More informationQuestion 8 Chemical properties of metals and nonmetals. 1) magnesium 2) sulfur trioxide 3) iron (II) hydroxide 4) sodium nitrate
Question 8 Chemical properties of metals and nonmetals 1. Calcium oxide doesn t react with 1) NaNO 3 2) HCl 3) CO 2 4) H 2 O 2. Calcium oxide reacts with both of the following 1) SO 2 and O 2 2) H 2 O
More informationUnit IV: Chemical Equations & Stoichiometry
Unit IV: Chemical Equations & Stoichiometry A. The chemical equation B. Types of chemical reactions A. Activity series of metals B. Solubility rules C. Rules for writing and balancing equations D. Calculations
More information11-1 Notes. Chemical Reactions
11-1 Notes Chemical Reactions Chemical Reactions In a chemical reaction 1 or more substances (the reactants) change into 1 or more new substances (the products). Reactants are always written on the left
More informationChapter 4. Properties of Aqueous Solutions. Electrolytes in Aqueous Solutions. Strong, weak, or nonelectrolyte. Electrolytic Properties
Chapter 4 Reactions in Aqueous Solution Observing and Predicting Reactions How do we know whether a reaction occurs? What observations indicate a reaction has occurred? In your groups, make a list of changes
More informationelemental state. There are two different possibilities: DESCRIPTION 1. One cation (+ ion) replaces another. 2. One anion (- ion) replaces another.
CHEMICAL TYPES HANDOUT In these reactions, a free element reacts with a compound to form another compound and release one of the elements of the original compound in the elemental state. There are two
More informationThe photograph in the textbook provides evidence that an exothermic chemical reaction is occurring.
Preview Lesson Starter Objectives Indications of a Chemical Reaction Characteristics of Chemical Equations Significance of a Chemical Equation Balancing Chemical Equations Section 1 Describing Chemical
More informationChapter 7 Chemical Reactions
Chapter 7 Chemical Reactions Evidence of Chemical Change Release or Absorption of Heat Color Change Emission of Light Formation of a Gas Formation of Solid Precipitate Tro's "Introductory 2 How Do We Represent
More informationCh 100: Fundamentals for Chemistry
Ch 100: Fundamentals for Chemistry Chapter 8: Chemical Equations Lecture Notes Chemical Equations (Intro) 1. Chemical equations are used to symbolically describe chemical reactions 2. In a chemical equation
More informationUnit 6.3 Types of Chemical reactions
Unit 6.3 Types of Chemical reactions Most chemical reactions can be classified into one of five types of reactions. It depends on both the reactants used and the products formed. The possible chemical
More informationIndicators of chemical reactions
Indicators of chemical reactions Emission of light or heat Formation of a gas Formation of a precipitate Color change Emission of odor All chemical reactions: have two parts Reactants - the substances
More informationChapter 11 Practice Test
Chapter 11 Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. *You will need your own calculator for blast from the past questions. 1. Some of
More informationStudy Guide: Stoichiometry
Name: Study Guide: Stoichiometry Period: **YOUR ANSWERS MUST INCLUDE THE PROPER NUMBER OF SIG FIGS AND COMPLETE UNITS IN ORDER TO RECEIVE CREDIT FOR THE PROBLEM.** BALANCE THE FOLLOWING EQUATIONS TO USE
More informationTHE MOLE - PART 2. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
THE MOLE - PART 2 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Which one of the following statements is a quantitative observation? a.
More informationD O UBLE DISPL Ac EMENT REACTIONS
Experiment 8 Name: D O UBLE DISPL Ac EMENT REACTIONS In this experiment, you will observe double displacement reactions and write the corresponding balanced chemical equation and ionic equations. Double
More informationChemical Equations. Chemical Reactions. The Hindenburg Reaction 5/25/11
Chemical Reactions CHM 1032C Chemical Equations Chemical change involves a reorganization of the atoms in one or more substances. The Hindenburg Reaction Reactants are on left, products to the right. Arrow
More informationCh. 8 Notes ~ CHEMICAL REACTIONS NOTE: Vocabulary terms are in boldface and underlined. Supporting details are in italics.
Ch. 8 Notes ~ CHEMICAL REACTIONS NOTE: Vocabulary terms are in boldface and underlined. Supporting details are in italics. I. Chemical Reactions (rxns.) A. chemical reaction an expression showing the conversion
More informationD O UBLE DISPL Ac EMENT REACTIONS
Experiment 8 Name: D O UBLE DISPL Ac EMENT REACTIONS In this experiment, you will observe double displacement reactions and write the corresponding balanced chemical equation and ionic equations. Double
More informationUNIT (4) CALCULATIONS AND CHEMICAL REACTIONS
UNIT (4) CALCULATIONS AND CHEMICAL REACTIONS 4.1 Formula Masses Recall that the decimal number written under the symbol of the element in the periodic table is the atomic mass of the element. Atomic mass
More informationChapter 9. Calculations from Chemical Equations. to patients Introduction to General, Organic, and Biochemistry 10e throughout the
Chapter 9 Calculations from Chemical Equations Accurate measurement and calculation of the correct dosage are important in dispensing the correct medicine to patients Introduction to General, Organic,
More informationThe solvent is the dissolving agent -- i.e., the most abundant component of the solution
SOLUTIONS Definitions A solution is a system in which one or more substances are homogeneously mixed or dissolved in another substance homogeneous mixture -- uniform appearance -- similar properties throughout
More informationChemical Reactions. Burlingame High School Chemistry 1
Chemical Reactions 1 Chemical Equations Chemical equations are use to describe: the substances that react, the reactants the substances that are formed, the products the relative amounts of all substances
More informationChemical Reactions. Ch. 11 Chemical Reactions. Chemical Reactions. Chemical Reactions
Chemical Reactions Ch. 11 Chemical Reactions when a substance changes identity Reactants - original Products - resulting law of conservation of mass total mass of reactants = total mass of products In
More informationChemical Reactions. Chemical changes are occurring around us all the time
Chemical changes are occurring around us all the time Food cooking Fuel being burned in a car s engine Oxygen being used in the human body The starting materials are called reactants The ending materials
More informationCHAPTER 8 SALTS. NaCl. A salt is an ionic substance produced when the hydrogen ion of the acid is replaced by metal ion or an ammonium ion.
CHAPTER 8 SALTS A salt is an ionic substance produced when the hydrogen ion of the acid is replaced by metal ion or an ammonium ion. The salt consists of two parts, cation from base and anion from acid.
More informationBroughton High School
Name: Section: Chapter 21 Chemical Reactions Vocabulary Words 1. Balanced Chemical Reactions 2. Catalyst Broughton High School 3. Chemical Equation 4. Chemical Reaction 5. Coefficient 6. Combustion Reaction
More informationChapter 04. Reactions in Aqueous Solution
Chapter 04 Reactions in Aqueous Solution Composition Matter Homogeneous mixture Contains One visible distinct phase Uniform properties throughout Two or more substances that are mixed together Substances
More informationCHEMISTRY Midterm #2 October 26, Pb(NO 3 ) 2 + Na 2 SO 4 PbSO 4 + 2NaNO 3
CHEMISTRY 123-02 Midterm #2 October 26, 2004 The total number of points in this exam is 100. The total exam time is 50 min. Good luck! PART I: MULTIPLE CHOICE (Each multiple choice question has a 2-point
More informationSCH 3UI Unit 5 Outline Chemical Reactions Homework Questions and Assignments complete handouts: Balancing Equations #1, #2, #3, #4
Lesson Topics Covered 1 Note: Chemical Reactions and Chemical Equations definition of chemical reaction four signs of chemical change the Law of Conservation of Mass balancing chemical equations SCH 3UI
More informationReactions in Aqueous Solutions
Reactions in Aqueous Solutions 1 Chapter 4 General Properties of Aqueous Solutions (4.1) Precipitation Reactions (4.2) Acid-Base Reactions (4.3) Oxidation-Reduction Reactions (4.4) Concentration of Solutions
More informationChemical Reactions. All chemical reactions can be written as chemical equations.
Chemical Reactions All chemical reactions can be written as chemical equations. What is a Chemical Reaction? Chemical reactions represent chemical changes A chemical change occurs when a substance has
More informationChemistry deals with matter and its changes CHEMICAL REACTIONS
Chemistry deals with matter and its changes CHEMICAL REACTIONS CHEMICAL EQUATIONS N 2 + 3 H 2 2 NH 3 2 N 6 H 2 N 6 H reactants products balanced means equal numbers of atoms of each element on each side
More informationChapter 17. Oxidation-Reduction. Cu (s) + 2AgNO 3(aq) 2Ag (s) + Cu(NO 3 ) 2(aq) pale blue solution. colorless solution. silver crystals.
Chapter 17 Oxidation-Reduction Cu (s) + 2AgNO 3(aq) 2Ag (s) + Cu(NO 3 ) 2(aq) copper wire colorless solution silver crystals pale blue solution Introduction to General, Organic, and Biochemistry 10e John
More informationCHAPTER 11: CHEMICAL REACTIONS. Mrs. Brayfield
CHAPTER 11: CHEMICAL REACTIONS Mrs. Brayfield WRITING EQUATIONS Write the chemical equation for the following: Magnesium metal reacts with hydrochloric acid to form aqueous magnesium chloride and hydrogen
More informationMoles. Balanced chemical equations Molar ratios Mass Composition Empirical and Molecular Mass Predicting Quantities
Moles Balanced chemical equations Molar ratios Mass Composition Empirical and Molecular Mass Predicting Quantities Micro World atoms & molecules Macro World grams Atomic mass is the mass of an atom in
More informationUnit Two Worksheet WS DC U2
Unit Two Worksheet WS DC U2 Name Period Short Answer [Writing]. Write skeleton equations representing the following reactions and then balance them. Then identify the reaction type. Include all needed
More information2. Indicators of Chemical Rxns. Abbreviations of State (g) gas (l) liquid (s) solid (aq) aqueous a substance dissolved in water
Unit 6 Chemical Reactions 1. Parts of a Chemical Reaction 2. Indicators of a Chemical Reaction 3. Enthalpy 4. Balancing Chemical Equations 5. Word Equations 6. Classifying Chemical Reactions 7. Predicting
More informationWord Equations. Symbols used in equations. Unit 7: Chemical Reactions. hydrogen peroxide water + oxygen
Unit 7: Chemical Reactions Chemical reactions involve a reorganization of the atoms in one or more substances. Can be represented in different ways 1 Word Equations hydrogen peroxide reacts to produce
More informationWhat Do You Think? Investigate GOALS
Cool Chemistry Show Activity 4 Chemical Equations GOALS In this activity you will: Represent chemical changes using word equations and chemical equations. Distinguish between different classes of chemical
More informationUnit Learning Targets (L.T.):
Unit 9: Chemical Equations and Reactions Chapters 8 and 19 Name Block Unit Learning Targets (L.T.): By the end of the unit, students will be able to: Chapter 8: 1. Correctly write and balance chemical
More informationReactions in aqueous solutions Redox reactions
Reactions in aqueous solutions Redox reactions Redox reactions In precipitation reactions, cations and anions come together to form an insoluble ionic compound. In neutralization reactions, H + ions and
More informationChapter 3 Chemical Reactions
Chapter 3 Chemical Reactions Jeffrey Mack California State University, Sacramento Chemical Reactions Reactants: Zn + I 2 Product: ZnI 2 Chemical Reactions Evidence of a chemical reaction: Gas Evolution
More informationName. Practice Test 2 Chemistry 111
Name Practice Test 2 Chemistry 111 1) In the aqueous reaction of K 2 SO 4 (aq) + Ba(NO 3 ) 2 (aq) BaSO 4 (s) + 2KNO 3 (aq), which ions are the spectator ions? A) Ba 2+ 2- and SO 4 B) Ba 2+ and K + C) Ba
More informationHW 7 KEY!! Chap. 7, #'s 11, 12, odd, 31, 33, 35, 39, 40, 53, 59, 67, 70, all, 77, 82, 84, 88, 89 (plus a couple of unassigned ones)
HW 7 KEY!! Chap. 7, #'s 11, 12, 15-21 odd, 31, 33, 35, 39, 40, 53, 59, 67, 70, 72-75 all, 77, 82, 84, 88, 89 (plus a couple of unassigned ones) 11) NOTE: I used the solubility rules that I have provided
More informationChapter 4; Reactions in Aqueous Solutions. Chapter 4; Reactions in Aqueous Solutions. V. Molarity VI. Acid-Base Titrations VII. Dilution of Solutions
Chapter 4; Reactions in Aqueous Solutions I. Electrolytes vs. NonElectrolytes II. Precipitation Reaction a) Solubility Rules III. Reactions of Acids a) Neutralization b) Acid and Carbonate c) Acid and
More informationPractice Problems Stoich!
Practice Problems Stoich! Name: **YOUR ANSWERS MUST INCLUDE THE PROPER NUMBER OF SIG FIGS AND COMPLETE UNITS IN ORDER TO RECEIVE CREDIT FOR THE PROBLEM.** BALANCE THE FOLLOWING EQUATIONS TO USE IN QUESTIONS
More informationA reaction in which a solid forms is called a precipitation reaction. Solid = precipitate
Chapter 7 Reactions in Aqueous Solutions 1 Section 7.1 Predicting Whether a Reaction Will Occur Four Driving Forces Favor Chemical Change 1. Formation of a solid 2. Formation of water 3. Transfer of electrons
More informationIONIC CHARGES. Chemistry 51 Review
IONIC CHARGES The ionic charge of an ion is dependent on the number of electrons lost or gained to attain a noble gas configuration. For most main group elements, the ionic charges can be determined from
More informationIntroduction to Chemical Reactions. Making new substances
Introduction to Chemical Reactions Making new substances Main Ideas Chemical Reactions are represented by Chemical Equations. Chemical Equations are balanced to show the same number of atoms of each element
More informationVarious Types of Reactions
Various Types of Reactions Matthew Park Outline: 1. Synthesis / Replacement / Decomposition Reactions 2. Precipitation Reactions 3. Acid-Base Reactions 4. Summary: Metathesis Reactions NOTE: Not all of
More informationChapter 5 Classification and Balancing of Chemical Reactions
Chapter 5 Classification and Balancing of Chemical Reactions 5.1 Chemical Equations Chemical equations describe chemical reactions. - As words: hydrogen plus oxygen combine to form water - As a chemical
More informationChemistry I-H Types of Reactions / Reaction Prediction / Reaction Theory
Chemistry I-H Types of Reactions / Reaction Prediction / Reaction Theory I. Synthesis (combination) A + B ---------> AB Substances that are chemically combined may be two elements or two compounds. If
More informationChapter 4. Reactions in Aqueous Solution
Chapter 4. Reactions in Aqueous Solution 4.1 General Properties of Aqueous Solutions A solution is a homogeneous mixture of two or more substances. A solution is made when one substance (the solute) is
More informationChapter 4. The Major Classes of Chemical Reactions 4-1
Chapter 4 The Major Classes of Chemical Reactions 4-1 The Major Classes of Chemical Reactions 4.1 The Role of Water as a Solvent 4.2 Writing Equations for Aqueous Ionic Reactions 4.3 Precipitation Reactions
More informationChemical Reaction Defn: Chemical Reaction: when starting chemical species form different chemicals.
Chemical Reaction Defn: Chemical Reaction: when starting chemical species form different chemicals. Evidence to indicate that a chemical reaction has occurred: Temperature change Different coloured materials
More information9-1 The Nature of Chemical Reactions
9-1 The Nature of Chemical Reactions What are chemical reactions and why do they occur? A chemical reaction is a process in which one or more substances are converted into new substances with different
More informationChapter 8 Chemical Equations and Reactions
Chapter 8 Chemical Equations and Reactions 8-1 Describing Chemical Reactions Chemical reactions Matter undergoes 2 types of changes: 1.Physical changes no new substance produced 2.Chemical changes new/different
More informationChapter 4. Reactions In Aqueous Solution
Chapter 4 Reactions In Aqueous Solution I) General Properties of Aqueous Solutions Homogeneous mixture on a molecular level - prop. same throughout - separable by physical means - variable composition
More informationCHEMICAL REACTIONS. Discuss breaking/forming bonds 10/29/2012. Products Reactants
CHEMICAL REACTIONS - Page 321 Products Reactants Reactants: Zn + I 2 Product: Zn I 2 Discuss breaking/forming bonds Chemical Reaction or Change process in which one or more substances are converted into
More information1. Parts of Chemical Reactions. 2 H 2 (g) + O 2 (g) 2 H 2 O(g) How to read a chemical equation
Unit 6 Chemical Reactions 1. Parts of a Chemical Reaction 2. Indicators of a Chemical Reaction 3. Enthalpy 4. Balancing Chemical Equations 5. Word Equations 6. Classifying Chemical Reactions 7. Predicting
More informationDOUBLE DISPLACEMENT REACTIONS. Double your pleasure, double your fun
DOUBLE DISPLACEMENT REACTIONS Double your pleasure, double your fun Industrial processes produce unwanted by-products. Dissolved toxic metal ions-copper, mercury, and cadmium-are common leftovers in the
More informationGeneral Chemistry Multiple Choice Questions Chapter 8
1 Write the skeleton chemical equation for the following word equation: Hydrochloric acid plus magnesium yields magnesium chloride and hydrogen gas. a HClO 4 + Mg --> MgClO 4 + H 2 b HClO 4 + Mg --> MgClO
More informationPart 01 - Notes: Reactions & Classification
Objectives: Identify, define, and explain: combination reaction, synthesis reaction, decomposition reaction, single replacement reaction, double replacement reaction, combustion reaction, rapid oxidation,
More information1 Chemical Reactions and Equations
1 Intext Questions On Page 6 Question 1. Why should a magnesium ribbon be cleaned before burning in air? Magnesium ribbon reacts with CO present in air to form a protective and inert layer of magnesium
More informationIntro to Reactions/ Balancing Equations
Intro to Reactions/ Balancing Equations Chemical Reactions Chemical reactions involve change. Evidence of a chemical reaction could include the following Evolution of heat, light, and/or sound Production
More information