Chapter Five Vocabulary-Hayly Smith

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Across
  1. 5. The cells in your body that contain thousands of catalysts
  2. 8. Any change that alternate appearance of another substance
  3. 9. In creases the reaction rate by lowering the activation energy needed
  4. 10. The energy released
  5. 12. A reaction when an element replaces another in a chemical equation
  6. 13. Solids that form from liquids during a chemical change
  7. 16. The amount of substance in a given volume
  8. 17. Where matter can enter and leave into the surrounding areas
  9. 18. Substances that undergo chemical changes
Down
  1. 1. Matter cannot enter or leave
  2. 2. The energy gained
  3. 3. The new substances that form during a chemical change
  4. 4. A change in matter that changes into one or more new substances
  5. 6. the minimum amount of energy needed to start a chemical reaction
  6. 7. A reaction when two or more elements break down less complex equations
  7. 11. A material used to decrease the rate of a chemical reaction
  8. 14. A reaction when two or more elements or compounds combine into more complex equations
  9. 15. A number place in from of an element in a chemical equation