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Chapter 11. Physics A First Course. Energy and Change. Energy and Change Changes in Matter. 11.1 Chemical Bonds 11.2 Chemical Reactions 11.3 Nuclear Reactions. Explain why most atoms combine with other atoms to make compounds. Predict whether a chemical bond is ionic or covalent.

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chapter 11
Chapter 11

Physics A First Course

Energy and Change

energy and change changes in matter
Energy and ChangeChanges in Matter
  • 11.1 Chemical Bonds
  • 11.2 Chemical Reactions
  • 11.3 Nuclear Reactions
chapter 11 1 objectives and vocabulary
Explain why most atoms combine with other atoms to make compounds.

Predict whether a chemical bond is ionic or covalent.

Describe the difference between ionic and covalent bonds.

Chapter 11.1 Objectives and Vocabulary
  • ionic bond
  • covalent bond
  • ion
11a investigation energy and chemical changes
Key Question:

How do chemical changes involve energy?

11A Investigation: Energy and Chemical Changes

*Students read text section 11.2

AFTER Investigation 11A

11a investigation topics
11A Investigation Topics
  • Measure materials.
  • Observe chemical reactions.
  • Measure temperature changes.
  • Compare exothermic and endothermic reactions.
  • Graph temperature vs. time for reactions.
instant cold packs
Instant Cold Packs

NH4NO3+H2O+energy->NH4+ (aq)+ NO3- (aq)

Snow Melt

CaCl2+H2O ->Ca2+(aq)+Cl- (aq)+energy

chapter 11 2 objectives and vocabulary
chemical reaction

reactant

product

chemical equation

activation energy

exothermic

endothermic

photosynthesis

respiration

Recognize the signs of chemical change.

Explain how energy is used or released by chemical reactions.

Write an equation for a chemical reaction.

Chapter 11.2 Objectives and Vocabulary
11b investigation nuclear reactions and radioactivity
Key Question:

How do nuclear changes involve energy?

11B Investigation: Nuclear Reactions and Radioactivity

*Students read text section 11.3 AFTER Investigation 11B

11b investigation topics
11B Investigation Topics
  • Perform model radioactive decay experiment.
  • Graph amount of matter vs. trial.
  • Compare decay experiment to nuclear reactions and atom structure.
  • Build model atoms.
  • Predict half-life of radioactive materials.
chapter 11 3 objectives and vocabulary
nuclear reaction

chain reaction

radioactive

radioactive decay

alpha decay

beta decay

gamma decay

half-life

Compare and contrast nuclear reactions and chemical reactions.

Explain the difference between fusion and fission reactions.

Describe what is happening in radioactive decay.

Chapter 11.3 Objectives and Vocabulary