Investigation 6 Vocabulary

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Across
  1. 3. A single compound breaks down into two or more simpler products.
  2. 4. A scale that ranges from 0 to 14, indicating how acidic or basic a substance is.
  3. 6. A positively charged ion (has less electrons than it should).
  4. 8. One element replaces another in a compound.
  5. 9. A chemical reaction where an acid and a base react to form water and a salt.
  6. 10. The reactant that is used up first in a chemical reaction, thereby determining the amount of product formed.
  7. 12. The anions and cations of two different compounds switch places.
  8. 13. A negatively charged ion (has more electrons than it should).
  9. 15. A chemical reaction that releases energy.
  10. 18. The ending substances in a reaction.
  11. 19. A substance that has a pH greater than 7 and releases hydroxide (OH-) ions when dissolved in water.
  12. 20. A process in which one or more substances are changed into new substances with different properties.
Down
  1. 1. A way to represent a chemical reaction using symbols and formulas.
  2. 2. Two substances come together and react to form one substance.
  3. 5. A law that implies that mass can neither be created nor destroyed.
  4. 7. The starting substances in a reaction.
  5. 11. A substances that has a pH of less than 7 and releases hydrogen ions (H+) when dissolved in water.
  6. 14. A substance combines with oxygen, releasing energy in the form of light or heat.
  7. 16. A chemical reaction that absorbs energy.
  8. 17. The reactant that remains after the limiting reactant is completely consumed.