Chemistry Vocabulary Revision

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Across
  1. 2. A chemical reaction where energy is absorbed
  2. 5. A change where a new substance is formed, it is usually irreversible
  3. 7. The process by which plants make their own food in the form of glucose
  4. 10. How fast the reaction goes
  5. 11. A substance with a pH of more than 7
  6. 12. A substance with a pH of less than 7
Down
  1. 1. A substance that can be added to a chemical reaction to increase the reaction rate
  2. 3. The substances that the reaction starts with (the chemicals that react together in a reaction)
  3. 4. The substances that the reaction ends with (the chemicals produced in a reaction)
  4. 6. A chemical reaction where energy is released
  5. 8. The first element on the periodic table
  6. 9. A substance that is formed when acids react with based, metals or metal carbonates