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Chemical Reactions Worksheet

Review reactants and products, evidence of chemical change, conservation of atoms, and how balanced equations represent reactions.

Science8th Grade9th Grade

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0 of 8 answered

01 In a chemical equation, where are the reactants written?
02 What does the arrow in a chemical equation mean?
03 Which observation can be evidence of a chemical reaction?
04 In a closed system, what happens to the total mass during a chemical reaction?
05 Why must a chemical equation be balanced?
06 In 2H₂ + O₂ → 2H₂O, which substance is a product?
07 What is a precipitate?
08 Which change is physical rather than chemical?

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