Practice Formulas, Equations, and RXNS Test
|
|
- Lindsey Cameron
- 6 years ago
- Views:
Transcription
1 Page 1 Name: Practice Formulas, Equations, and RXNS Test Date: 1. 2 SO2(g) + O2(g) «2 SO3(g) What type of reaction is shown above? A) double replacement B) decomposition C) single replacement 2. Which equation is correctly balanced? A) Ca + Cl2 Ca2Cl B) H2 + O2 H2O C) Ca + Cl2 CaCl D) 2 H 2 + O 2 2 H 2 O 3. Given the incomplete equation: 4Fe + 3O2 2X Which compound is represented by X? A) Fe 2 O 3 B) Fe3O2 C) FeO D) Fe3O4 4. What is the chemical formula for sodium sulfate? 7. Given the reaction: Mg(s) + 2 AgNO3(aq) Mg(NO3)2(aq) + 2 Ag(s) Which type of reaction is represented? A) decomposition B) synthesis C) single replacement D) double replacement 8. Given the incomplete equation for the combustion of ethane: 2C2H6+ 7O2 4CO2 + 6 What is the formula of the missing product? A) H 2 O B) H2O2 C) HCOOH D) CH3OH 9. What is the chemical formula for copper(ii) hydroxide? A) Cu(OH) 2 B) CuOH2 C) Cu2(OH) D) CuOH A) NaSO4 B) NaSO3 C) Na 2 SO 4 D) Na2SO3 5. What is the IUPAC name for the compound FeS? A) iron(ii) sulfide B) iron(ii) sulfate C) Iron(III) sulfide D) iron(iii) sulfate 6. What is the chemical formula for iron(iii) oxide? A) Fe3O B) Fe3O2 C) Fe 2 O 3 D) FeO 10. What is the chemical formula for nickel (II) hypochlorite? A) Ni(ClO) 2 B) Ni(ClO)3 C) NiCl2 D) NiClO2 11. The chemical formula for nickel (II) bromide is A) N2Br B) NBr2 C) Ni2Br D) NiBr A balanced equation representing a chemical reaction can be written using A) chemical formulas and mass numbers B) chemical formulas and coefficients C) first ionization energies and mass numbers D) first ionization energies and coefficients
2 Page Given the unbalanced equation: 19. Which is the formula for the compound that forms when magnesium bonds with phosphorus? A) Mg2P3 B) Mg2P When the equation is correctly balanced using the smallest whole-number coefficients, the coefficient for H2O is C) MgP2 D) Mg 3 P Given the unbalanced equation: 14. Which formula represents strontium phosphate? A) Sr2(PO4)3 B) Sr 3 (PO 4 ) 2 C) SrPO4 D) Sr3PO8 When the equation is correctly balanced using the smallest whole-number coefficients, what is the coefficient of CO? 15. Which equation represents a decomposition reaction? A) 2H2(g) + O2(g) 2H2O(l) B) CaCO 3 (s) CaO(s) + CO 2 (g) C) KOH(aq) + HCl(aq) KCl(aq) + H2O(l) D) Cu(s) + 2AgNO3(aq) 2Ag(s) + Cu(NO3)2(aq) 16. The correct name for the compound NaClO3 is sodium A) chloride B) chlorite C) perchlorate D) chlorate 17. What is the formula of titanium(ii) oxide? A) TiO B) TiO2 C) Ti2O3 D) Ti2O 18. Given the balanced equation: 2 Na + 2 H2O 2 X + H2 What is the correct formula for the product represented by the letter X? A) NaOH B) NaO C) Na2OH D) Na2O
3 Page Given the unbalanced equation: When the equation is balanced using the smallest whole-number coefficients, what is the coefficient of Al? 22. What is the name of the polyatomic ion in the compound Na2O2? A) peroxide B) oxide C) hydroxide D) oxalate 23. Which formula represents copper(i) oxide? A) Cu 2 O B) CuO C) CuO2 D) Cu2O NH3(g) «N2(g) + 3 H2(g) What type of reaction is shown above? A) decomposition B) single replacement C) double replacement 24. A metal, M, forms an oxide compound with the general formula M2O. In which group on the Periodic Table could metal M be found? A) Group 2 B) Group 16 C) Group 1 D) Group Given the balanced equation representing a reaction: Which type of reaction is represented by this equation? A) double replacement B) single replacement C) decomposition 26. Which balanced equation represents a single-replacement reaction? A) MgCl2 + 2AgNO3 2AgCl + Mg(NO3)2 B) MgCO3 MgO + CO2 C) 2Mg + O2 2MgO D) Mg + 2AgNO 3 Mg(NO 3 ) 2 + 2Ag
4 Page Given the unbalanced equation: What is the coefficient of O2 when the equation is balanced correctly using the smallest whole number coefficients? 29. If an equation is balanced properly, both sides of the equation must have the same number of A) moles of molecules B) coefficients C) molecules D) atoms 30. Which two solutions, when mixed together, will undergo a double replacement reaction and form a white, solid substance? A) KCl(aq) and AgNO 3 (aq) B) NaNO3(aq) and AgNO3(aq) C) NaCl(aq) and LiNO3(aq) D) KCl(aq) and LiCl(aq)
5 Answer Key Practice Formulas, Names, Equations Page 5 1. D 2. D 3. A 4. C 5. A 6. C 7. C 8. A 9. A 10. A 11. D 12. B 13. B 14. B 15. B 16. D 17. A 18. A 19. D 20. C 21. B 22. A 23. A 24. C 25. B 26. D 27. A 28. C 29. D 30. A
Reaction 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
1st Semester Review Worth 10% of Exam Score
1st Semester Review 2014-2015 Worth 10% of Exam Score Name: P: 1. Which of the following is the correct electron configuration for a neutral atom of oxygen in the ground state? A) 1s 2 2p 4 B) 1s 2 2s
H Midterm Review. Page 1
Name: H Midterm Review 1. Which statement compares the masses of two subatomic particles? A) The mass of an electron is greater than the mass of a proton. B) The mass of an electron is greater than the
Chem A Ch. 9 Practice Test
Name: Class: Date: Chem A Ch. 9 Practice Test Matching Match each item with the correct statement below. a. product d. balanced equation b. reactant e. skeleton equation c. chemical equation 1. a new substance
Chemical Reactions. Chemical Reactions 5 signs/evidence of chemical reactions:
Chemical Reactions Chemical Reactions 5 signs/evidence of chemical reactions: Chemical Reaction: a process in which one or more substances are converted into new substances with different chemical and
Chapter 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
CHE 105 FA17 Exam 2. How many moles of beryllium are in 15.0 grams of Be?
CHE 105 FA17 Exam 2 Your Name: Your ID: Question #: 1 How many moles of beryllium are in 150 grams of Be? A 66 B 13515 C 901 D 0601 Question #: 2 Vanillin, C8H8O3, is the molecule responsible for the vanilla
Chapter 7 - Chemical Reactions
Chapter 7 - Chemical Reactions Evidence of a Chemical Reaction If we could see the atoms and molecules that compose matter, we could easily identify a chemical reaction: Atoms combine with other atoms
Topic: Chemical Equations
Chemical Equations Lesson Objectives List evidence that suggests that a chemical reaction has occurred and evidence that proves that a chemical reaction has occurred. Describe a chemical reaction by using
Focus on National 5. Unit 1 - Chemical Changes and Structure
Focus on National 5 Unit 1 - Chemical Changes and Structure Name Class Nuclide Notation mass number b atomic number b ax Symbol Number of protons = Number of electrons = Number of neutrons = atomic number
Chapter 3 Chemical Reactions and Equations
Chapter 3 Chemical Reactions and Equations Chemical Reactions Reactions involve rearrangement and exchange of atoms to produce new pure substances. Reactants Products Chemical Equations Shorthand way
Practice Packet Unit 7: Moles & Stoichiometry
PRACTICE PACKET: Unit 7 Moles & Stoichiometry Regents Chemistry: Practice Packet Unit 7: Moles & Stoichiometry Vocabulary: Lesson 1: Lesson 6: Lesson 2: Lesson 4A: Lesson 4B: Lesson 3: Lesson 5: www.chempride.weebly.com
AP Chemistry. Mole, Molecular Formula Review One Mole = o This is Avogadro s number. Molar Mass: The mass of one mole of a substance in grams.
AP Chemistry Ms Ye Name Date Block Mole, Review One Mole = o This is Avogadro s number Molar Mass: The mass of one mole of a substance in grams Percent Composition: Identifies the elements present in a
Unit 4. Multiple Choice Identify the choice that best completes the statement or answers the question.
Unit 4 Multiple Choice Identify the choice that best completes the statement or answers the question. 39. Changing a subscript in a correctly written chemical formula a. changes the number of moles represented
SOLUTIONS - CHAPTER 9 Problems
SOLUTIONS - CHAPTER 9 Problems NOTE: Exam 3 will be on Tuesday, November 22 nd, from 8:30pm to 10:30pm. Room assignments for the exam are the same as for the first two exams. The exam will cover the following
Name 4/25/2012 / Regents Review: Periodic Table and Stoichiometry
Name 4/25/2012 / Regents Review: Periodic Table and Stoichiometry 1. Given the balanced equation representing a reaction: H + (aq) + OH (aq) H2O( ) + energy In this reaction there is a conservation of
BALANCING 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
7 Chemical Reactions and Quantities Practice Problems
7 Chemical Reactions and Quantities Practice Problems I m trying a different set up for the practice problems. This still contains the practice problems you need to master for the test. I ve organized
Honors Chemistry - Unit 7 Chapter 11 Chemical Reactions
Honors Chemistry - Unit 7 Chapter 11 Chemical Reactions Important Dates: Diatomics, Reaction Symbols, Balancing Quiz: January 4 th Unit 7 UT Quest (2 parts): Due11:58pm on January 8 th Unit 7 Packet -
A 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
9-1 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
Chemistry: A Molecular Approach (Tro) Chapter 4. Chemical Quantities and Aqueous Reactions
Chemistry: A Molecular Approach (Tro) Chapter 4 Chemical Quantities and Aqueous Reactions 1) According to the following balanced reaction, how many moles of NO are formed from 8.44 moles of NO 2 if there
Name 4/25/2012 / Regents Review: Periodic Table and Stoichiometry
Name 4/25/2012 / Regents Review: Periodic Table and Stoichiometry 1. Given the balanced equation representing a reaction: H + (aq) + OH (aq) H2O( ) + energy In this reaction there is a conservation of
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) When the following equation is balanced, the coefficients are. 1) NH3 (g) + O2 (g) NO2
TYPES 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
Chemistry Review 2015 Sobota
Sobota 1. What is the overall charge of an ion that has 12 protons, 10 electrons, and 14 neutrons? A) 2 B) 2+ C) 4 D) 4+ 2. Which particles have approximately the same mass? A) an electron and an alpha
1.1 Introduction to the Particulate Nature of Matter and Chemical Change MATTER. Homogeneous (SOLUTIONS)
TOPIC 1: STOICHIOMETRIC RELATIONS 1.1 Introduction to the Particulate Nature of Matter and Chemical Change MATTER Mass Volume Particles Particles in constant motion MATTER Pure Matters Mixtures ELEMENTS
Oxidation-Reduction Reactions
Chemistry Grade:12 CHAPTER 19 REVIEW Oxidation-Reduction Reactions SECTION 1 SHORT ANSWER Answer the following questions in the space provided. 1. All the following equations involve redox reactions except
Chemical Reactions CHAPTER Reactions and Equations
CHAPTER 9 Chemical Reactions 9.1 Reactions and Equations The process by which atoms of one or more substances are rearranged to form different substances is called a chemical reaction. There are a number
Chemical 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
Chemical reactions describe processes involving chemical change
1.1 Chemical Reactions 1.2 Chemical Equations Chemical reactions describe processes involving chemical change The chemical change involves rearranging matter Converting one or more pure substances into
Chapter 5 Chemical Reactions
Chapter 5 Chemical Reactions 5.1 Chemical Equations A chemical equation shows the chemical change taking place. The state of each substance is written in parentheses after the formula: s for solids, l
2) Which of the following ionic compounds is named without using a Roman numeral? A) CaO B) PbO C) AuCl3 D) CuS
Chemical Equations Practice Test Chemistry MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which compound is a variable charge binary ionic compound?
Chapter 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
Chem II. Zn(s) + CuSO4(aq)
Redox Review Chem II 1. What is the sum of the oxidation numbers of the atoms in the compound CO2? A) 0 B) 2 C) 4 D) +4 2. In which substance does phosphorus have a +3 oxidation state? A) P4O10 B) PCl5
Chapter 4 Chemical Formulas, Reactions, Redox and Solutions
Terms to Know: Solubility Solute Solvent Solution Chapter 4 the amount of substance that dissolves in a given volume of solvent at a given temperature. a substance dissolved in a liquid to form a solution
9. The ratio of the volume of nitrogen to that of the ammonia in the reaction N2 + 3 H2 2 NH3 is 1) 1:2; 2) 1:3; 3) 3:2; 4) 2:3.
1. In a balanced chemical equation l) coefficients are equal; 2) atoms are conserved; 3) molecules are equal; 4) energy is always produced; 5) none of these. 2. Which of the following statements about
2. Relative molecular mass, M r - The relative molecular mass of a molecule is the average mass of the one molecule when compared with
Chapter 3: Chemical Formulae and Equations 1. Relative atomic mass, A r - The relative atomic mass of an element is the average mass of one atom of an element when compared with mass of an atom of carbon-12
Unit 4 Conservation of Mass and Stoichiometry
Unit 4 Conservation of Mass and Stoichiometry 7-1 Chemical Names and Formulas I. Significance of a Chemical Formula A. Molecular formulas 1. Number of atoms of each element in one molecule of a compound
Naming Ionic Compounds with Two Elements
Chapter 6 Lecture Chapter 6 Ionic and Molecular Compounds 6.3 Naming and Writing Ionic Compounds Fifth Edition Naming of Ionic Compounds In the name of an ionic compound, the positive ion (first ion) is
elemental 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
AP Chemistry Unit 1 Review Guide: IUPAC Naming, Stoichiometry, Solution Chemistry
I. IUPAC Naming AP Chemistry Unit 1 Review Guide: IUPAC Naming, Stoichiometry, Solution Chemistry For Ionic Compounds: Formula to Name: 1. Identify the cation (positive ion) by name, then identify the
Chemical 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
Part 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,
Chapter 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
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
Chapter 6. Chemical Reactions. Sodium reacts violently with bromine to form sodium bromide.
Chapter 6 Chemical Reactions Sodium reacts violently with bromine to form sodium bromide. Evidence of Chemical Reactions Chemical Equations Reactants Products Reactant(s): Substance(s) present before the
1) What is the volume of a tank that can hold Kg of methanol whose density is 0.788g/cm 3?
1) Convert the following 1) 125 g to Kg 6) 26.9 dm 3 to cm 3 11) 1.8µL to cm 3 16) 4.8 lb to Kg 21) 23 F to K 2) 21.3 Km to cm 7) 18.2 ml to cm 3 12) 2.45 L to µm 3 17) 1.2 m to inches 22) 180 ºC to K
CHEMICAL EQUATIONS WHAT BALANCING AN EQUATION MEANS
17 CHEMICAL EQUATIONS WHAT BALANCING AN EQUATION MEANS WHAT IS A CHEMICAL EQUATION? A chemical equation is a way of representing a chemical reaction in symbolic form. For example, when hydrochloric acid
UNIT 9 - STOICHIOMETRY
General Stoichiometry Notes STOICHIOMETRY: tells relative amts of reactants & products in a chemical reaction Given an amount of a substance involved in a chemical reaction, we can figure out the amount
H H H H H O H O. Role of Water. Role of Water. Chapter 4. Chemical Reactions in Aqueous Solution H 2 H H H 2 O. Role of H 2 O(l) as solvent.
Role of Water Role of Water Chemical Reactions in Aqueous Solution Role of H 2 O(l) as solvent The polar nature of water molecule Two key features: 1. The distribution of bonding electrons O H covalent
Types of Chemical Reactions. Synthesis, Combustion, Decomposition and Replacement
Types of Chemical Reactions Synthesis, Combustion, Decomposition and Replacement You can think of atoms as people getting together as couples... Analogy One person A couple Switching partners Chemical
CHEMICAL 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
Unit 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
Spring Semester Final Exam Study Guide
Honors Chemistry Name Period AlCl3 Cu2S NaCN HI PCl3 CrBr3 Naming and Formula Writing 1. Write the name or formula for each of the following: HClO2 (NH4)2SO4 I4O10 H3N NiN H3PO4 Mercury (II) bromide Phosphorous
SCH4U Chemistry Review: Fundamentals
SCH4U Chemistry Review: Fundamentals Particle Theory of Matter Matter is anything that has mass and takes up space. Anything around us and in the entire universe can be classified as either matter or energy.
IONIC 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
Chapter 5. Chemical reactions
Chapter 5 Chemical reactions Chemical equations CaO(s) + CO 2 (g) CaCO 3 (s) + CO(g) Chemical equation - representation of a chemical reaction; uses the symbols of the elements and formulae of the compounds
Chemistry 143 Dr. Caddell Modesto Junior College. Chemical Reactions Key
Chemical Reactions Key 1.) Combine about 2 ml of 0.1 M calcium chloride with about 2 ml of 0.1 M sodium phosphate. CATEGORY: Double Replacement 3CaCl 2 (aq) + 2Na 3 PO 4 (aq) 6NaCl(aq) + Ca3(PO 4 ) 2 (s)
CHEMISTRY II SUMMER ASSIGNMENT and First Day Test Material
CHEMISTRY II SUMMER ASSIGNMENT and First Day Test Material CHEMISTRY II FIRST DAY TEST Chemistry II is a difficult course. It is not all about memorization; however, having these items memorized is essential
Topic 8: Chemical Reactions Chemical Equations & Reactions
Topic 8: Chemical Reactions Chemical Equations & Reactions (Chapter 8 in Modern Chemistry) Describing Chemical Reactions A chemical reaction is the process by which one or more substances are changed into
Chapter 4 Compounds and Their Bonds. Octet Rule. Metals Form Positive Ions. Ionic and Covalent Bonds. Formation of a Sodium Ion, Na +
Chapter 4 Compounds and Their Bonds Octet Rule 4.1 Octet Rule and Ions An octet Is 8 valence electrons. Is associated with the stability of the noble gases. Helium (He) is stable with 2 valence electrons
Practice Test Bonding
1. Which compound has both ionic and covalent bonds? CO2 CH3OH NaI Na2CO3 2. Which group on the Periodic Table of the Elements contains elements that react with oxygen to form compounds with the general
Barium nitrate and sodium carbonate. What Is Given? Reactants: barium nitrate and sodium carbonate Type of reaction: double displacement
12. Practice Problem (page 175) Barium nitrate and sodium carbonate Determine the products that form when barium nitrate and sodium carbonate Reactants: barium nitrate and sodium carbonate Barium nitrate:
UNIT (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
Unit 4 Conservation of Mass and Stoichiometry
Naming Ions I. Monatomic Ions A. Monatomic ions 1. Ions formed from a single atom Unit 4 Conservation of Mass and Stoichiometry B. Naming Monatomic Ions 1. Monatomic cations are a. Identified by the element
Types of Chemical Reactions
Types of Chemical Reactions 1) Combination (Synthesis) Reaction 2) Decomposition 3) Single Replacement 4) Double Replacement 5) Combustion 6) Oxidation-Reduction (Redox) Combination (Synthesis) Reactions
Acid Base Review. Page 1
1. Which substance, when dissolved in water, forms a solution that conducts an electric current? A) C2H5OH B) C6H12O6 C) C12H22O11 D) CH3COOH 2. A substance is classified as an electrolyte because A) it
Chapter 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
Unit 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)
5. [7 points] What is the mass of gallons (a fifth) of pure ethanol (density = g/cm 3 )? [1 gallon = Liters]
1 of 6 10/20/2009 3:55 AM Avogadro s Number, N A = 6.022 10 23 1. [7 points] Given the following mathematical expression: (15.11115.0)/(2.154 10 3 ) How many significant figures should the answer contain?
temperature change a) On heating, solid calcium carbonate yields solid calcium oxide and gaseous carbon dioxide. 4Li(s) + O2(g) 2Li2O(s)
CHEMISTRY WKST CH. 7 & 8 REVIEW (REACTIONS & EQUATIONS) NAME: JMS 1) What are the 5 evidences that a chemical reaction took place? precipitate forms color change gas released temperature change 2) Consider
THE 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.
REDOX test practice. 2 Cr(s) + 3 Sn 2+ (aq) 2 Cr 3+ (aq) + 3 Sn(s)
1. Which polyatomic ion has a charge of 3? A) chromate ion B) oxalate ion C) phosphate ion D) thiocyanate ion 2. What is the oxidation state of nitrogen in NaNO2? A) +1 B) +2 C) +3 D) +4 3. What are the
Honors Chemistry - Unit 7 Chapter 11 Chemical Reactions
Honors Chemistry - Unit 7 Chapter 11 Chemical Reactions Vocab Assignment Due: Unit 7 Packet - Page 1 of 15 UT Quest(s): Quiz on Diatomic Molecules & Balancing: Prediction Quiz : Test Date: VOCABULARY Assignment
CHEM 200/202. Professor Jing Gu Office: EIS-210. All s are to be sent to:
CHEM 200/202 Professor Jing Gu Office: EIS-210 All emails are to be sent to: chem200@mail.sdsu.edu My office hours will be held in GMCS-212 on Monday from 9 am to 11 am or by appointment. ANNOUNCEMENTS
Name Class Date. combustion, decomposition, single-replacement, and double-replacement reactions.
11.2 Types of Chemical Reactions Essential Understanding There are five types of chemical reactions: combination, combustion, decomposition, single-replacement, and double-replacement reactions. Reading
Chemistry Term 2 Review 1) Using the diagram above, answer the following question: How many electrons are in the valence shell of this atom? A. 2 B.
Name: Date: Chemistry Term 2 Review 1) Using the diagram above, answer the following question: How many electrons are in the valence shell of this atom? A. 2 C. 6 E. 13 2) Which formula represents an ionic
Chapter 6 Chemical Names and Formulas
Chemistry/ PEP Name: Date: Chapter 6 Chemical Names and Formulas Chapter 6: 1 9, 12, 14 24, 26 28, 31 36, 40, 42, 49, 52, 53, 56, 58, 62, 67 (37 total) 1. Provide the name and symbol of the ion formed
Balancing 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
Chapter 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
Funsheet 3.0 [WRITING & BALANCING EQUATIONS] Gu/R. 2017
Funsheet 3.0 [WRITING & BALANCING EQUATIONS] Gu/R. 2017 Balance the following chemical equations. Remember, it is not necessary to write "1" if the coefficient is one. 1. N 2 + H 2 NH 3 2. KClO 3 KCl +
Unit 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.
Exam 3. Objectives: Nomenclature
Exam 3 Objectives: o Nomenclature m-nm, m(vos)-nm, nm-nm o Evidence for Chemical Reactions o Writing Chemical Equations o Balancing Chemical Equations o Classifying Chemical Reactions o Combination Reactions
The 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
Definition: the process by which one or more substances are rearranged to form different substances. Another name for a chemical change.
Chemical Reactions I. What is a chemical reaction? Definition: the process by which one or more substances are rearranged to form different substances. Another name for a chemical change. A. How can you
CHE 105 Exam 2 Fall 15
CHE 105 Exam 2 Fall 15 Question #: 1 Which of the following statements is(are) true for ionic bonds? Select all that apply. A. These bonds typically form between a metal and a nonmetal. B. The formation
Ch 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
ed. Brad Collins Aqueous Chemistry Chapter 5 Some images copyright The McGraw-Hill Companies, Inc. Sunday, August 18, 13
ed. Brad Collins Aqueous Chemistry Chapter 5 Some images copyright The McGraw-Hill Companies, Inc. A solution is a homogenous mixture of 2 or more substances at the molecular level The solute(s) is(are)
Name: 1. Law of Conservation of Mass atoms going into the reaction (reactants) must equal atoms coming out of the reaction (products)
Unit 8: Balancing and Identifying Chemical Reactions Packet Name: 1. Law of Conservation of Mass atoms going into the reaction (reactants) must equal atoms coming out of the reaction (products) C O 2 CO
Chapter 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
Chem 30A. Ch 7. Chemical Reactions
Chem 30A Ch 7. Chemical Reactions Chemical Equations Chemical Reactions Chemical reac+on: a process that involves the rearrangement of the ways atoms are grouped together Evidence for Chemical Reactions
VOCABULARY Define. 1. reactants. 2. products. 3. chemical equation. 4. precipitate. 5. word equation
CHAPTER 8 HOMEWORK 8-1 (pp. 241 245) Define. 1. reactants 2. products 3. chemical equation 4. precipitate 5. word equation GRAPHIC ORGANIZER Complete the chart by listing three signs that suggest that
Practice Packet Unit 3: Moles & Stoichiometry
PRACTICE PACKET: Unit 3 Moles & Stoichiometry Regents Chemistry: Mr. Palermo Practice Packet Unit 3: Moles & Stoichiometry Vocabulary: Lesson 1: Lesson 2: Lesson 3: Lesson 4: Lesson 5: Lesson 6: Lesson
26. N 2 + H 2 NH N 2 + O 2 N 2 O 28. CO 2 + H 2 O C 6 H 12 O 6 + O SiCl 4 + H 2 O H 4 SiO 4 + HCl 30. H 3 PO 4 H 4 P 2 O 7 + H 2 O
Balance the following chemical equations: (Some may already be balanced.) 1. H 2 + O 2 H 2 O 2. S 8 + O 2 SO 3 3. HgO Hg + O 2 4. Zn + HCl ZnCl 2 + H 2 5. Na + H 2 O NaOH + H 2 6. C 10 H 16 + Cl 2 C +
Classifying Chemical Reactions
Chem 101 Classifying Chemical Reactions Lectures 17 and 18 Classifying Chemical Reactions Chemical reactions can be divided into five categories: I. Combination or Synthesis Reactions II. Decomposition
Chemical Bonds In elements and compounds, the atoms are held together by chemical bonds.
Chemical Bonds In elements and compounds, the atoms are held together by chemical bonds. Forming a bond makes an atom more stable, so atoms form as many bonds are they are able to. Bonds are made using
Types of Reactions: Reactions
1 Reactions On the A.P. Test there will be one question (question #4) that will say: Give the formulas to show the reactants and the products for the following chemical reactions. Each occurs in aqueous
Ch 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