Integrated Physics and Chemistry Unit 4

Big Idea:

How chemical reactions can produce products and energy.

Student Expectations:

Priority TEKS

I.7A Investigate changes of state as it relates to the arrangement of particles of matter & energy transfer.

I.7B Recognize that chemical changes can occur when substances react to form different substances & that these interactions are largely determined by the valence electrons.

I.7C Demonstrate that mass is conserved when substances undergo chemical change & that the number & kind of atoms are the same in reactants or products.

I.7D Analyze energy changes that accompany chemical reactions such as those occurring in heat packs, cold, packs, & glow sticks, & classify them as exothermic or endothermic reactions.

I.7F Research & describe the environmental & economic impact of the end products of chemical reactions such as those that may result in acid rain, degradation of water & air quality, & ozone depletion.

Student Learning Targets:

I will know why hot packs, cold packs, glow sticks, and other chemical reactions work.

• I can use lab results to decide if a chemical reaction is endothermic or exothermic.
• I can look at a chemical reaction and classify it as: addition, combustion, decomposition, double-displacement, or single-displacement and analyze each for energy changes.

I will know how balanced chemical reactions make products.

• I can explain the differences between physical changes & chemical changes.
• I can distinguish between physical & chemical changes when substances are reacted.
• I can explain how atoms rearrange to form new substances.
• I can show that a chemical reaction follows the law of conservation of mass.
• I can balance a chemical equation.
• I can use examples from everyday life to explain the difference between physical and chemical changes.
• I can predict how much product a chemical reaction will make.

I will identify the types of chemical reactions and discuss environmental impacts.

• I can predict products of simple reactions.
• I can identify the types of chemical reactions and discuss environmental impacts.
• I can find information on how a chemical or reaction product impacts the environment

Essential Questions:

Extra Information:

Adopted Textbook: McGraw-Hill, Glencoe IPC Texas

District Grading Policy

Texas Gateway Online Resource Center

Vocabulary: Endothermic, exothermic, chemical equation, chemical reaction, coefficient, product, reactant, addition reaction, combustion reaction, precipitate, decomposition reaction, double-displacement reaction, single-displacement reaction, polymerization