Chemistry Unit Test Review

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Across
  1. 1. When put into water, acids release _________ ions.
  2. 2. This type of paper indicator gives the specific pH
  3. 3. Energy is transferred from the surroundings to the reactants in a ________ reaction
  4. 6. When hydronium, H3O+ and hydroxide, OH- react what is produced is ______________
  5. 7. A solution that has a pH above 7 is a ______
  6. 10. In a combustion reaction, the products always have _______.
  7. 11. Energy was absorbed to ________ bonds
  8. 12. Energy is released to _________ bonds
  9. 13. In a chemical reaction the atoms will be
  10. 15. This type of chemical reaction has the equation: A + B --> AB
  11. 16. The reactants are different from the products in a ________change
  12. 17. When acids and bases neutralize they produce a _________
Down
  1. 1. When bases are put in water, they release _____________ ions.
  2. 4. Energy goes from the reactants to the surroundings in a ______ reaction
  3. 5. In an exothermic reaction, energy is _________ from the reactants into the surroundings.
  4. 8. Chemical energy is energy that is present in _____________
  5. 9. Limestone is a base and will __________ with an acid.
  6. 14. A phase change is a type of