Unit 8: Chemical Reactions Crossword Puzzle

12345678910111213141516
Across
  1. 2. Any substances that remain the same from start to finish and are removed from the equation are called ______.
  2. 7. A ______ equation is when all aqueous substances are shown as individual ions dissolved in water.
  3. 8. If an element is ______ it contains two atoms.
  4. 10. A ______ reaction can be element + element and compound + compound yielding one compound.
  5. 13. In a combustion reaction AB is a ______ meaning H and C are bonded together.
  6. 14. The Law of Conservation of Mass means there must be the ______ number of each atom on both sides.
  7. 15. All ______ are soluble.
Down
  1. 1. What elements are found as two atoms covalently bonded together?
  2. 3. Properties of substances ______ during chemical reactions.
  3. 4. Most ______ are solids (s).
  4. 5. Polyatomic ions need to appear as a ______ if they appear on both sides.
  5. 6. What is used to determine reactivity in a single displacement reaction if A is a nonmetal and no reaction occurs?
  6. 9. In a single displacement reaction and A is a nonmetal, if nonmetal A is more reactive than nonmetal C it ______ C's spot in the compound.
  7. 11. (aq) means a substance is in ______ form (dissolved in water).
  8. 12. In a decomposition reaction, a generic formula can be a ______ compound meaning there is 3 elements in the compound.
  9. 16. In a double displacement reaction a compound plus a compound yields ______ new compounds.