CHAPTER 1: CHEMICAL REACTIONS
|
|
- Annabel Woods
- 5 years ago
- Views:
Transcription
1 CHAPTER 1: CHEMICAL REACTIONS
2 Section 1: Forming New Substances Chemical Changes are responsible for leaf coloring Chemical Reactions Process of one or more substance undergoes change to produce one or more different substances New substances had different chemical and/or physical characheristics
3 Clues to Chemical Reactions Gas Formation Solid Formation (Precipitate) Color Change Energy Change Breaking and Making Bonds New Substance Formed because: bonds break, atoms are rearranged, and new bonds form
4 Chemical Formulas Chemical Symbol-short-hand for identifying elements Chemical Formula-short-hand notation for a compound or diatomic element H2O 2 indicates 2 hydrogen Subscript smaller/lower number No subscript indicates 1 atom of the element
5 Examples: O 2 2 Oxygen atoms C 6 H 12 O 6 6 Carbon, 12 Hydrogen, 6 Oxygen
6 Writing Formulas for Covalent Compounds Usually made from two nonmetals Name can help write the formula Prefix often tells the # of atoms Mono-1 Hexa-6 Di-2 Hepta-7 Tri-3 Octa-8 Tetra-4 Nona-9 Penta-5 Deca-10
7 Writing Formulas for Ionic Compounds Likely to contain name of metal and nonmetal Overall charge must be zero must balance with subscripts NaCl MgCl2
8 Chemical Equations Shorthand description of a chemical reaction using chemical symbols Understood throughout the world no translation needed
9 Reactants Yield Products Reactants starting materials of a reaction Products substances formed from the reaction C + O2 Reactants CO2 Products Separate elements with (+) Arrow reads as yields
10 Accuracy is important Diatomic elements: H2, N2, O2, Fl2, Cl2, Br2,I2 Inaccuracies can misrepresent information/characteristics CO2 carbon dioxide/harmless gas CO carbon monoxide/poisonous gas Co Cobalt/grey metal
11 An Equation Must Be Balanced Atoms are not gained or lost in a reaction Number of reactant atoms must equal the number of product atoms
12 How to Balance an Equation Coefficients: number in front of a chemical symbol/formula To find the number of atoms: Multiply the coefficient by the subscript 2CO 2 2 Carbon, 4 Oxygen
13 Steps to Balancing Count the atoms on each side of the equation Balance by adding coefficients Recount and Repeat as Needed H 2 + O 2 H 2 O H = 2 H = 2 UNBALANCED O =2 O= 1 H 2 + O 2 2 H 2 O H = 2 H = 4 UNBALANCED O =2 O= 2 2H 2 + O 2 2 H 2 O H = 4 H = 4 BALANCED O =2 O= 2
14 Mass Is Conserved It s A Law! Law of Conservation of Mass: mass is neither created nor destroyed in an ordinary chemical or physical change Same number of each type of atom are found on each side of the equation
15 Section 2: Types of Chemical Reactions 4 Categories of Reactions: Synthesis, Decomposition, Single-Replacement, and Double Replacement Reactions
16 Synthesis Reactions Two or more substances combine to form a single substance 2 Na + Cl2 2NaCl
17 Decomposition Reaction Single compound breaks down to form two or more simple substances Reverse of synthesis reaction H 2 CO 3 H 2 O + CO 2
18 Single-Replacement Reaction One element takes the place of another element in a reaction Some elements are more reactive than others More reactive elements replace less reactive elements 2N + 2HCl 2NCl 2 + H 2
19 Double-Replacement Reactions Ions in two compounds switch position Often a gas or precipitate is formed NaCl + AgF NaF + AgCl
20 Section 3: Energy and Rate of Chemical Reactions Every Reaction Involves Energy Bonds break with absorbed energy Bonds form with energy release Energy is Released in Exothermic Reactions Energy removed as light, electrical, or heat Energy is Absorbed in Endothermic Reactions Energy added listed on left of equation
21 Section 3: Energy and Rate of Chemical Reactions Energy is Conserved It s a Law! Energy is neither created nor destroyed Activation Energy Gets a Reaction Started Activation Energy: minimum amount of energy needed for a substance to react Exothermic energy released as a product supplies the activation energy to continue the reaction Endothermic energy is needed to be supplied to keep the reaction going
22 Factors Affecting Rates of Reactions Rates of Reactions How rapidly the reaction takes place Temperature Concentration Surface Area Presence of Catalyst or Inhibitor
23 Temperature Increase temperature increases rate Particles move faster and collide Concentration Concentration: Amount of substance dissolved in another Greater concentration generally increases the rate More substances are closer together and collide
24 Surface Area Increasing Area Speeds Rate Grinding particles to powder exposes more of reactants and more collide Catalysts and Inhibitors Catalysts: substances that speed up reactions without permanently being changed Inhibitor: substance that slows down or stops a chemical reaction
2 Chemical Formulas and Equations
CHAPTER 14 2 Chemical Formulas and Equations SECTIN Chemical Reactions BEFRE YU READ After you read this section, you should be able to answer these questions: What are chemical formulas? What are chemical
More informationChapter 7 Chemical Reactions
Chapter 7 Chemical Reactions Chemical Equation --> is a representation of a chemical reaction in which the reactants and products are expressed as formulas Reactants --> substances that undergo change
More informationChemical Bonds And Equations
Chemical Bonds And Equations Intro to Chemical Bonds EQ: Why do atoms have a strong desire to form chemical bonds in nature? What are these called when different types of atoms bond to form a chemically
More informationChapter 14 Study Questions Name: Sci Class:
Chapter 14 Study Questions Name: Sci Class: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Balancing a chemical equation so that the same
More informationChapter Introduction Lesson 1 Understanding Chemical Reactions Lesson 2 Types of Chemical Reactions Lesson 3 Energy Changes and Chemical Reactions
Chapter Introduction Lesson 1 Understanding Chemical Reactions Lesson 2 Types of Chemical Reactions Lesson 3 Energy Changes and Chemical Reactions Chapter Wrap-Up Changes in Matter A physical change does
More information2 Chemical Formulas and Equations
CHAPTER 2 2 Chemical Formulas and Equations SECTIN Chemical Reactions BEFRE YU READ After you read this section, you should be able to answer these questions: What are chemical formulas? What are chemical
More informationUnit 6. Chemical Reactions
Unit 6 Chemical Reactions Physical Vs. Chemical Change Physical changes= changes in form (phase), but not the identity of the substance ex: H 2 O (s) H 2 O (l) (* Starts as H 2 O and ends as H 2 O) Chemical
More informationElements Combine to Form Compounds
Elements Combine to Form Compounds Name the Super Heroes Compound Pun Compound - Pun Compounds ( 2 nd type of Pure Substance) Compound: a pure substance made up of more than one kind of element in which
More informationWhich of the following is NOT an example of a chemical reaction? A. Milk turning sour B. Food being digested C. A match burning D.
Chemical Reactions Which of the following is NOT an example of a chemical reaction? A. Milk turning sour B. Food being digested C. A match burning D. Ice melting Which of the following is NOT an example
More information4 Energy and Rates of Chemical Reactions
CHAPTER 14 4 and Rates of Chemical Reactions SECTION Chemical Reactions BEFORE YOU READ After you read this section, you should be able to answer these questions: How is energy involved in a chemical reaction?
More information2 Chemical Formulas and Equations
CHAPTER 9 2 Chemical Formulas and Equations SECTIN Chemical Reactions 8.3.f, 8.5.b California Science Standards BEFRE YU READ After you read this section, you should be able to answer these questions:
More informationPhysical Change - alters the form or appearance of a substance but does not change it into a new, different substance
Chemical Reactions Physical Change - alters the form or appearance of a substance but does not change it into a new, different substance Chemical Change - forms one or more new substances with properties
More informationNOTES PACKET COLLIER CHEMISTRY PRE-AP
SECOND NINE WEEKS NOTES PACKET COLLIER CHEMISTRY PRE-AP 1 2 UNIT 5 CHEMICAL NAMING & BALANCING Chapter 6, 15.1, 16.1 3 NOMENCLATURE: Atoms of elements combine to form that are represented by. All compounds
More informationMOLECULAR COMPOUNDS. Example: CO 2, not O 2 C
LEARNING GOAL: GIVEN THE FORMULA OF A MOLECULAR COMPOUND, WRITE ITS CORRECT NAME; GIVEN THE NAME OF A MOLECULAR COMPOUND, WRITE ITS FORMULA. Two atoms can be held together by their mutual attraction for
More informationTuesday, April 12, 16. Forming Compounds
Forming Compounds Atom: Single unit of a chemical element. C, N, Cl Ion: Charge atom. Na +, O 2- Compound: Two or more elements chemically combined. H2O, CO2, NaCl Don t write, just listen. :) Elements
More information7.1 Describing Reactions
Chapter 7 Chemical Reactions 7.1 Describing Reactions Chemical Equations Equation states what a reaction starts with, and what it ends with. Reactants the starting materials that undergo change. (On the
More informationTest Review # 9. Chemistry A: Form TR9-9A
Chemistry A: Form TR9-9A TEST 9 REVIEW Name Date Period Test Review # 9 Binary Covalent Compounds. Two nonmetals can combine to form compounds. When two nonmetals combine, they form covalent bonds. The
More informationUnit 5: Chemical Reactions. Chapter 11
Unit 5: Chemical Reactions Chapter 11 Objectives 35 Identify the five types of chemical reactions 36 Write word and chemical equations based on chemical reactions 37 Balance chemical equations 38 Predict
More informationChemical Symbols & Formulas
+ Chemical Symbols & Formulas + Chemical Symbols All elements in the Periodic Table have symbols that are recognized world wide. It does not matter which country you are in or the language you speak. Example:
More informationChemical Reactions Chapter 17
Chemical Reactions Chapter 17 I. Physical Change Changes which affect the size or shape of the substance BUT NOT its chemical properties or formulas. e.g.; ice melting. Water is still water II. Chemical
More informationBalancing Equations. Chemical reactions occur when bonds (between the electrons of atoms) are formed or broken Chemical reactions involve
Balancing Equations Chemical reactions occur when bonds (between the electrons of atoms) are formed or broken Chemical reactions involve changes in the chemical composition of matter the making of new
More informationChapter 9 Practice Test
Chapter 9 Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1) Which of the following describes a chemical reaction? a) A gas is given off when
More informationBalancing Hydrocarbons
Balancing Equations a. Add coefficients to make atoms the same on both sides b. Must balance Metals first, then Nonmetals, followed by Hydrogen, and Oxygen last ( met nine hairy oxen ) c. Adjust totals
More informationCovalent & Metallic Bonding
Covalent & Metallic Bonding Metallic Bonding Metals are made of closely packed cations. These cations have a number of valence electrons floating around them as what we call a sea of electrons. Metallic
More informationCHAPTER 3. Elements combine to form compounds.
CHAPTER 3 Elements combine to form compounds. 3.1 Compounds Compounds: pure substances made of more than one kind of element joined together. Compounds form through chemical bonds - links between two or
More informationChemical formula - tells you how many atoms of each element are in a compound example: CO 2 (carbon dioxide) has one carbon atom and two oxygen atoms
Chemical Reactions Chemical formula - tells you how many atoms of each element are in a compound example: CO 2 (carbon dioxide) has one carbon atom and two oxygen atoms 2 points Chemical Equation - a short,
More informationChapter 7: Chemical Reactions
Chapter 7: Chemical Reactions Physical Science C. Goodman, Doral Academy Charter High School, 2012-2013 Based on a presentation by Holt, Rinehart and Winston Section 7.1 Essential questions 1. What is
More informationChemical Reactions. Section 7.1: Nature of Reactions
Chemical Reactions Section 7.1: Nature of Reactions When do chemical reactions take place? What is the role of energy in chemical reactions? 1 Chemical Reactions It is a change in matter that produces
More informationCOVALENT BONDS Revised2.notebook February 21, 2013
COVALENT BONDS 1 Learning Targets 1 and 2 Pre Assess Big Ideas Post Assess I can define, identify, and diagram covalent bonds I can determine the number of bonds formed by atoms when forming molecules.
More informationChemical reactions. Section Describing chemical reactions
Chemical reactions Section 11.1 - Describing chemical reactions What are everyday examples of chemical reactions? How do you write a chemical equation in words? Chemical equations are like a recipe, telling
More informationChapter 6. Chemical Compounds
Chapter 6 Chemical Compounds Chemical Formula: Shows what is found in a molecular compound: Types of atoms Numbers of atoms Chemical Formula: Monatomic elements are represented by their atomic symbols
More informationChapter 17: Chemical Reactions
Chapter 17: Chemical Reactions Section 1: Chemical Formulas and Equations Chemical Equations Balancing Chemical Equations Law of Conservation of Mass Evidences of Chemical Reactions Symbols to represent
More informationScience 1206 Chemistry Unit #10
Science 1206 Chemistry Unit #10 Introduction to Chemical Equations Communicating Chemical Changes Chemical change occurs when matter changes into a new and different form. The new form has a new make up
More informationCh 12.1 What are compounds? Two or more elements chemically combined to form a new substance.
Ch 12.1 What are compounds? Two or more elements chemically combined to form a new substance. Structure of Compounds Network Structures = strong solids Molecules= weak solids, liquids, or gases Bonding
More informationCovalent Bonding bonding that results from the sharing of electron pairs.
Unit 5 Notes Covalent Bonding, Covalent Compounds, and Intermolecular Forces Chemical Bond a mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms
More informationChemical Reactions and Equations
Name Date Chemical Reactions and Equations What happens to atoms and energy during a chemical reaction? Before You Read Before you read the chapter, think about what you know about chemical reactions Record
More informationCovalent compounds. i.e. one type of atom only OR from different elements chemically combined to form a compound.
CHEMICAL BONDING Covalent compounds Covalent bonds are formed by atoms sharing electrons to form molecules. This type of bond usually formed between two or more non-metallic elements. The molecules might
More information8.1 Chemical Properties and Changes. chemical property chemical change dissolving
8.1 Chemical Properties and Changes chemical property chemical change dissolving Ability to Change 8.1 Chemical Properties and Changes In a chemical change, the properties that give a substance its identity
More informationChemical Bonds & Reactions
Chemical Bonds & Reactions Chemical Bond A force of attraction that holds two atoms together Has a significant effect on chemical and physical properties of compounds involves the valence electrons Valence
More informationScience Starter. Give the name of the following compounds. Give the formula for the following compounds. 1. Na 3 N 2. V 2 S 3.
Science Starter Give the name of the following compounds. 1. Na 3 N 2. V 2 S 3. Li 2 SO 4 Give the formula for the following compounds. 1. Potassium carbonate 2. Iron (IV) oxide 3. Sodium nitride Objective
More information8 th Grade Science. Directed Reading Packet. Chemistry. Name: Teacher: Period:
8 th Grade Science Directed Reading Packet Chemistry Name: Teacher: Period: Chapter 1, Section 1: Inside the Atom Introduction 1. Atoms are the particles of an element that still have the element s. 2.
More informationChapter 6 and 7 Study Guide Reactions and Bonds
Name_ Per. Block _ Multiple Choice: Chapter 6 and 7 Study Guide Reactions and Bonds 1. Copper is a good conductor of electricity because its electrons A. are positively charged B. are free to move and
More informationConservation The Law of Conservation of Matter states that matter cannot be created or destroyed in ordinary chemical reactions. This means that no
Chemical Reactions Conservation The Law of Conservation of Matter states that matter cannot be created or destroyed in ordinary chemical reactions. This means that no atoms can be lost or gained. This
More informationChoose the answer that best completes each statement.
Name Date CHAPTER TEST: CHEMICAL BONDS AND EQUATIONS Multiple Choice Choose the answer that best completes each statement. 1. Magnesium bromide is an ionic compound with the chemical formula MgBr2. What
More informationEvery living and nonliving things is made up of matter. MATTER: anything that has mass & takes up space. What does all matter have in common?
the basics Every living and nonliving things is made up of matter MATTER: anything that has mass & takes up space What does all matter have in common? Smallest unit of matter ALL matter is made of particles
More informationNotes: Chemical Reactions (text Ch. 8)
U Name Per. Notes: Chemical Reactions (text Ch. 8) NOTE: This set of class notes is not complete. We will be filling in information in class. If you are absent, it is your responsibility to get missing
More informationChemical Reactions Chapter 2 L book pages L44 - L73. examples?
Name: Period: Chemical Reactions Chapter 2 L book pages L44 - L73 Vocabulary Word What is this? (definition) What are some examples? What does it look like? (draw a picture or diagram) Physical property
More informationUnit 5: Diversity of Matter
21 21 Table of Contents Unit 5: Diversity of Matter Chapter 21: Chemical Reactions 21.1: Chemical Changes 21.2: Chemical Equations 21.3: Classifying Chemical Reactions 21.4: Chemical Reactions and Energy
More informationChemical Changes. Lavoisier and the Conservation of Mass
1 Chemical Changes Lavoisier and the Conservation of Mass Chemical reactions are taking place all around you and even within you. A chemical reaction is a change in which one or more substances are converted
More informationChemical Reactions: The Law of Conservation of Mass
Chemical Reactions: The Law of Conservation of Mass What happens in a Chemical Reaction? Chemical bonds in the reactants are broken, then atoms are rearranged to form new substances (products). Reactants
More informationYour Guide for Success Chemistry Unit Name:
Your Guide for Success Chemistry Unit Name: Chemistry Outline I. Atoms A. Structure of an Atom 4 1. Subatomic Particles 2. Different Form b. Isotope II. Periodic Table 1. Arranging 6 a. Mendeleev b. Mosely
More informationIndicate the answer choice that best completes the statement or answers the question.
Indicate the answer choice that best completes the statement or answers the question. 1. Which of the following bonds is polar? a. F F b. O H c. O O d. H H 2. In the compound, H 2 O, the electrons in the
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 Bonds & Reactions
Chemical Bonds & Reactions Chemical Bond A force of attraction that holds two atoms together Involves the valence electrons (they determine the chemical characteristics of the atom!) Valence Electrons
More informationReview Complete Questions 6, 7 and 9 on page 214
Review Complete Questions 6, 7 and 9 on page 214 Title: Jan 5 8:43 AM (1 of 69) Title: Jan 5 11:18 AM (2 of 69) Title: Jan 5 11:22 AM (3 of 69) Title: Jan 5 11:26 AM (4 of 69) Title: Jan 5 11:28 AM (5
More informationStudent Exploration: Chemical Changes
Name: Date: Student Exploration: Chemical Changes Vocabulary: acid, base, catalyst, chemical change, coefficient, conservation of matter, decomposition, dissolve, double replacement, endothermic, exothermic,
More informationChapter 1 Section 1- Pages 4-7: Electrons and Chemical Bonding COMBINING ATOMS THROUGH CHEMICAL BONDING
Study Guide Chapter 1 and 2 Interactions of Matter Chapter 1 Section 1- Pages 4-7: Electrons and Chemical Bonding COMBINING ATOMS THROUGH CHEMICAL BONDING 1. Which of these substances is a combination
More informationPHYSICAL & CHEMICAL CHANGES
PHYSICAL & CHEMICAL CHANGES The characteristics of a substance are called its properties. Physical properties are those that describe the matter without changing its composition. Examples are density,
More informationCHEMICAL COMPOSITION AND REACTIONS Chapter 8
CHEMICAL COMPOSITION AND REACTIONS Chapter 8 OUTLINE Oxidation Numbers and Formulas Nomenclature Writing Equations Types of Reactions OXIDATION NUMBERS AND THEIR RULES Oxidation numbers represent the number
More informationBonding, Moles & Unit 3. Stoichiometry
Bonding, Moles & Unit 3 Stoichiometry Warm-up! Chem Catalyst 1.What part of the atom participates in the reactivity of elements? 2.What does the octet rule have to do with reactivity? 3.Based on what you
More informationChemistry B11 Chapter 5 Chemical reactions
Chapter 5 Chemical reactions Chemical reactions are classified into five groups: A + B AB Synthesis reactions (Combination) H + O H O AB A + B Decomposition reactions (Analysis) NaCl Na +Cl A + BC AC +
More informationUnit 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
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 informationDefinition: 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
More informationTest Review # 6. Chemistry R: Form TR6-10A
Chemistry R: Form TR6-10A TEST 6 REVIEW Name Date Period Test Review # 6 The Stock System.The stock system is a set of rules for naming compounds of metals and non metals. The metal always comes first
More informationChemical Bonds & Reactions
Chemical Bonds & Reactions Chemical Bonding Do you understand how it works? What do you think when I pull out a bag of candy? I want that candy cause I don t have any! Does everyone think the same thing?
More informationPHOTOSYNTHESIS as a chemical reaction
CHEMICAL REACTIONS PHOTOSYNTHESIS as a chemical reaction SUNLIGHT CO 2 + H 2 O C 6 H 12 O 6 + O 2 REACTANTS PRODUCTS REACTANTS are the ingredients of a chemical reaction, always listed to the left of the
More informationChemical Bonds CH. 18: PG
Chemical Bonds CH. 18: PG. 552-571 Today s Learning Objectives How does a compound differ from the elements that make it up? What is a chemical bond? Know how to determine the number of valence electrons
More informationChemical Reactions. A. Chemical Reactions And The Law Of Conservation Of Mass
Chemical Reactions A. Chemical Reactions And The Law Of Conservation Of Mass 1. A CHEMICAL REACTION is a change that produces new materials with different properties from the starting materials. Various
More informationIonic Covalent Metallic
3 Types of Chemical Bonds Ionic Covalent Metallic What can you describe about each of these bonds just by looking at the name? Chemical Bonds & Reactions Chemical Bond A force of attraction that holds
More informationParts of a Chemical Formula
Formula Writing Parts of a Chemical Formula Chemical Formula- symbolic way to represent compounds Chemical Symbol Letters Represents the elements that are in a compound Each new capital letter represents
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 informationCollision Theory. and I 2
Collision Theory To explain why chemical reactions occur, chemists have proposed a model, known as collision theory, which states that molecules must collide in order to react. These collisions can involve
More informationYour Guide for Success Chemistry Unit Name:
Your Guide for Success Chemistry Unit Name: Chemistry Outline I. Classification Of Matter A. Elements 4 1. Identifying by Properties 2. Classifying Elements B. Compounds 4 1. Composition 2. Identifying
More informationNaming and Counting Atoms and Molecules. Chemistry--Unit 2
Naming and Counting Atoms and Molecules Chemistry--Unit 2 Masses of 22.4 L O 2, N 2, & HCl N 2 28 g O 2 32 g HCl 36.5 g Observation: At 1 atmosphere pressure and 0 o C, 22.4 L of 3 different gases have
More informationModeling Conservation of Mass
How is mass conserved (protected from loss)? Imagine an evening campfire. As the wood burns, you notice that the logs have become a small pile of ashes. What happened? Was the wood destroyed by the fire?
More informationUnit 6 Kinetics and Equilibrium.docx
6-1 Unit 6 Kinetics and Equilibrium At the end of this unit, you ll be familiar with the following: Kinetics: Reaction Rate Collision Theory Reaction Mechanism Factors Affecting Rate of Reaction: o Nature
More informationSection 1 Chemical Changes
Chemical Reactions Section 1 Chemical Changes What You ll Learn: How to identify the reactants & products in a chemical reaction How a chemical reaction follows the law of conservation of mass How chemists
More informationChapter 8 Chemical Reactions
Chapter 8 Chemical Reactions 8.1 Chemical Reactions Evidence of a Chemical Change Chemical reactions involve rearrangement and exchange of atoms to produce new molecules Remember: matter can neither be
More informationChemical Equations. Physical Science
Chemical Equations Physical Science Chemical Equations A chemical equation is a shorthand way of expressing a chemical reaction. CHEMICAL REACTIONS Reactants: Zn + I 2 Product: Zn I 2 Chemical reactions
More informationNaming and Formulas. Molecular Compounds. Molecular Compounds. Molecular Compounds
Acidic Compounds Naming and Formulas Molecular compounds are made of nonmetals only (includes flagpole elements!) Electrons are shared (molecular), not transferred (ionic) No transfer = no charge = no
More informationChapter 5: Chemical Reactions
Chapter 5: Chemical Reactions CHEMICAL EQUATIONS Chemical equations are a convenient way to represent chemical reactions. Chemical equations are written in terms of reactants and products. A symbol is
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 informationBonds can bend and stretch without breaking (bond lengths are averages)
The Structure of Matter What are compounds? Two or more different elements bonded together by VALENCE ELECTRONS o The force that holds two atoms together The ability to write a formula, such as H2O, indicates
More informationChapter 24. One or more substances are changed into new substances. Balanced chemical equations: have the same number of atoms on both sides.
Chapter 24 Chemical Reactions What is a chemical reaction? One or more substances are changed into new substances. Conservation of mass Mass of the products = mass of the reactants Reactants Produce Products
More informationBinary Molecular Compounds
Binary Molecular Compounds What guidelines are used to write the name and formula of a binary molecular compound? Recall that binary ionic compounds are composed of the ions of two elements, a metal and
More informationBasic Chemistry. Nomenclature & Oxidation-Reduction Reactions. Objectives MODULE B. Lesson #3 Part 2. Nomenclature. Web Sites.
Objectives MODULE B Basic Chemistry Lesson #3 Part 2 Nomenclature & Oxidation-Reduction Reactions At the end of this module, the student will Define terms associated with the naming of organic compounds
More informationEmpirical Formulas and Molecular Formulas. Ch 3.5
Empirical Formulas and Molecular Formulas Ch 3.5 Empirical Formulas are the simplest (lowest) whole number ratio of atoms in a molecule or ionic compound Molecular Formulas are true formulas. For example:
More informationCompounds Element = 1 type of atom Compound = more than 1 type of atom (over 8 million) Chemical Bond = glue that links atoms together in a compound
Compounds Element = 1 type of atom Compound = more than 1 type of atom (over 8 million) Chemical Bond = glue that links atoms together in a compound Ionic Compounds Ionic Bonds = atoms switch e- forming
More informationCu(NO 3 ) 2 3H 2 O. Test Review # 5. Chemistry: Form TR5-6A
Chemistry: Form TR5-6A TEST 5 REVIEW Name Date Period Test Review # 5 Polar Molecules. Electronegativity differences between 0.4 and 1.7 are found in molecules with polar bonds. These molecules can be
More informationINTRODUCTORY CHEMISTRY Concepts and Critical Thinking
INTRODUCTORY CHEMISTRY Concepts and Critical Thinking Sixth Edition by Charles H. Corwin Chemical Reactions by Christopher Hamaker 1 Chemical and Physical Changes In a physical change, the chemical composition
More informationUnderstanding Equations
Chemical Reactions Chemical reaction: a process of chemically changing both the physical and chemical properties of a substance to a new substance with different physical and chemical properties. Video
More information» Composed of more than one type of atom chemically bonded.» A pure substance, meaning its properties are the same throughout the substance.
» Composed of more than one type of atom chemically bonded.» A pure substance, meaning its properties are the same throughout the substance.» Separated chemically not physically» No overall charge; they
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 informationTopic 1 Topic 2 Topic 3 Topic 4 Topic 5
Topic 1 Topic 2 Topic 3 Topic 4 Topic 5 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50 Question 1-10 Oxygen gas is written as O 2 in chemical equations. What term is used to
More informationCP Covalent Bonds Ch. 8 &
CP Covalent Bonds Ch. 8 & 9 2015-2016 Why do atoms bond? Atoms want stability- to achieve a noble gas configuration ( ) For bonds there is a transfer of electrons to get an octet of electrons For covalent
More informationCovalent Compounds AKA Molecular Compounds
Name: Covalent Compounds AKA Molecular Compounds Covalent Compounds (AKA molecular compounds) are formed when two nonmetals join together. These compounds share electrons and form covalent bonds. These
More informationChapter 7 An Introduction to Chemical Reactions. An Introduction to Chemistry by Mark Bishop
Chapter 7 An Introduction to Chemical Reactions An Introduction to Chemistry by Mark Bishop Chapter Map Chemical Reaction A chemical change or chemical reaction is a process in which one or more pure substances
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 informationChapter 5: Chemical Reactions
Chapter 5: Chemical Reactions CHEMICAL EQUATIONS Chemical equations are a convenient way to represent chemical reactions. Chemical equations are written in terms of reactants and products. A symbol is
More information