Checmical Reactions Crossword

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Across
  1. 3. When a chemical reaction occurs ______ is transferred to or from the surroundings. [6]
  2. 5. A substance made of two or more different atoms chemical joined. [8]
  3. 7. A type of reaction that may produce a colour change, a gas or a new solid. [8,8]
  4. 10. Safety equipment used to protect the eyes. [6,7]
  5. 11. Reacts with oxygen/burning. [10]
  6. 12. Two substances joining to make one. [9]
  7. 13. A chemical _________ shows how many atoms are in a compound, often uses symbols. [7]
  8. 14. A possible source of danger. [6]
  9. 15. A type of reaction where elements swap places. [12]
Down
  1. 1. A type of chemical reaction where you cannot get back the substances you started with. [12]
  2. 2. A reactions which gives out energy to the surroundings. [10]
  3. 4. One substance breaks down into two or more substances. [13]
  4. 6. The substances that are produced by a chemical reaction. [8]
  5. 8. A reaction which takes in energy from the surroundings. [11]
  6. 9. The chemicals that react together in a chemical reaction. [9]