chapter 7: Chemical Reactions review

1234567891011121314
Across
  1. 6. reaction with their environment
  2. 8. in a chemical reaction, the total mass of the reactants is the same as the total
  3. 10. a scale that represents the acidity or basicity of a solution; pH < 7 indicates an acid; pH > 7 indicates a base; pH 7 indicates a neutral solution
  4. 12. indicator a solution that is used to determine the pH(amount of acid or base) of a solution
  5. 13. reaction a chemical reaction that absorbs energy in the form of heat
  6. 14. neither an acid nor a base; for example,water
Down
  1. 1. the gradual destruction of materials by a chemical reaction with their environment
  2. 2. reaction a chemical reaction that releases energy in the form of heat or light
  3. 3. the original substances present in a chemical reaction
  4. 4. a reaction between an acid and a base. A salt and water (a neutral liquid) are the products of this type of reaction
  5. 5. chemicals that react with a base to produce a salt and water; edible acids taste sour
  6. 7. a paper containing an indicator that turns red when exposed to an acid and blue when exposed to a base
  7. 9. bases that dissolve in water
  8. 10. chemical substances that result from a chemical reaction mass of the products
  9. 11. a bond that forms between the atoms in a molecule