Chemical reactions

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Across
  1. 2. When magnesium(Mg) and hydrochloric acid(HCl) react, two tings are formed, magnesium chloride(MgCl) and ___
  2. 4. It gives out heat during the reaction.
  3. 7. This reactions needs heat to occur.
  4. 8. Something that helps speed up a chemical reaction.
  5. 9. The result when iron (Fe) reacts with water (H2O) and oxygen (O2).
  6. 10. The elements reacting together in a chemical reaction.
Down
  1. 1. Magnesium (Mg) + Chloride (Cl) (magnesium ___)
  2. 3. Carbon (C) + Oxygen (O2) (___ dioxide)
  3. 5. A chemical reaction forms a chemical ____
  4. 6. A reversible reaction.