Chemical reactions

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Across
  1. 5. reaction gets warmer.
  2. 6. Energy related to heat.
  3. 7. A method that engineers use to make solutions
  4. 8. The starting molecules in a chemical reaction.
  5. 9. a characteristic of a substance
  6. 10. A restriction placed on something.
  7. 11. The molecules that are formed as a resullt of the reaction.
Down
  1. 1. made of one type of material.
  2. 2. a blend of two or more substances
  3. 3. The rearrangment of molecules to make new molecules.
  4. 4. A standard to which something is judged.
  5. 5. reaction gets colder.