Chemical Reactions Review

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Across
  1. 3. Energy that produces heat.
  2. 5. What is left after a chemical reaction.
  3. 6. A reaction that happens in an environment where the reactants can not get out.
  4. 10. A model
  5. 12. Gaining a material back using a chemical reaction.
  6. 14. A change that happens on a molecular scale
  7. 15. A limit that prevents something from happening
  8. 16. States that no mass is gained or lost in a reaction
  9. 17. A reaction that happens in an environment where the reactants can get out.
  10. 18. When a solid object disappears in liquid.
Down
  1. 1. When one or more substance makes a new substance
  2. 2. Solids, liquids, and gasses are all _______ of matter.
  3. 4. A reaction that produces heat.
  4. 7. A reaction that absorbs heat.
  5. 8. Something you are supposed to meet
  6. 9. What is mixed in a chemical reaction that makes the reaction react.
  7. 11. When a new solid form in a chemical reaction.
  8. 13. When something is kept constant in a reaction.