Chemical Reactions

Edit Answers
1234567891011121314
Across
  1. 4. Uses chemical symbols and formulas to describe a reaction
  2. 6. Reaction where bonds are broken when energy enters the materials
  3. 8. The arrow in a chemical reaction
  4. 9. Reaction requiring oxygen to occur
  5. 11. An atom that loses or gains one or more electrons
  6. 12. Reaction where materials exit or the reaction releases substances
  7. 13. A change where atoms are not rearranged and no new substances are formed
  8. 14. Reaction that puts together compounds into a more complex molecule
Down
  1. 1. Equal number of atoms on both sides of the equation
  2. 2. Indicates the number of atoms in a molecule
  3. 3. Starting materials in a reaction
  4. 5. New substance formed in a reaction
  5. 7. Indicates the number of molecules of a compound
  6. 10. The change in the amount of neutrons in an atom