Reversible and irreversible reactions

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Across
  1. 3. substance that is on the left side of a chemical equation
  2. 4. Adding ___________ can change anhydrous compounds into hydrated compounds
  3. 7. Iron _________________ is an example of a irreversible change
  4. 8. A type of reaction that proceeds in one direction only
  5. 9. Substance that is formed on the right side of a chemical equation
Down
  1. 1. Ice _________________ is an example of a reversible change
  2. 2. It removes the water from hydrated compounds, forming anhydrous compounds
  3. 3. A type of reaction that proceed in either direction under appropriate conditions
  4. 5. A _____________ salt contains water of crystallisation
  5. 6. An ______________ salt that does not contain water of crystallisation