Chemical Reactions

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Across
  1. 4. Reactions that absorb energy
  2. 7. Is what you start with
  3. 8. A system that can exchange both energy and matter with its surrounding
  4. 10. Reactants that absorb energy
  5. 11. A substance that speeds up a chemical reaction.
  6. 12. What you end with
Down
  1. 1. A short easy way to show a chemical reaction using symbols
  2. 2. Number that is in frount of an equation.
  3. 3. A rule that says that mass is neither created nor destroyed
  4. 5. Small number found to the right of each element
  5. 6. A solid formed by a change in a solution.
  6. 9. reaction a process that leads to the chemical transformation of one set if chemical substances to another.
  7. 11. A system that can only exchange energy with its surrounding, not matter.