Language of Chemistry

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Across
  1. 2. The gas with rotten egg smell.
  2. 6. the substance that takes part in a chemical reaction
  3. 8. The gas that rekindles a glowing splinter.
  4. 10. An insoluble solid formed during the reaction
Down
  1. 1. the substances formed during the chemical reaction
  2. 3. The substance that alters the rate of the chemical reaction without taking part in it.
  3. 4. The reaction in which heat is released.
  4. 5. The gas formed when zinc reacts with hydrochloric acid
  5. 7. The colour of the residue formed when copper carbonate is heated.
  6. 9. Carbon dioxide turns ______ milky.