Chemistry Unit Test Review

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