Chemical Reactions Review

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Across
  1. 1. substance that is formed during a chemical reaction
  2. 3. starting substance in a chemical reaction
  3. 4. zinc metal and sulfur powder are heated
  4. 6. statement showing chemical change using chemical formulas
  5. 7. done by placing coefficients in front of the formulas
  6. 8. ↔, shows that the reaction is reversible and can go in both directions
Down
  1. 2. process where substances interact to form new ones
  2. 5. indicates the application of heat to the reactants