Chemical Reactions

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Across
  1. 3. A reaction which we cannot reverse.
  2. 5. Safety equipment we wear to protect our eyes.
  3. 6. A reaction which can be reversed.
Down
  1. 1. The flame we use to heat things.
  2. 2. A sign that a gas is being produced in a reaction.
  3. 3. A gas which can be detected using lime water.
  4. 4. The flame we use when we are not heating.
  5. 7. A gas produced during some chemical reactions.