Metals and Acids Keywords

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Across
  1. 2. The tendency of a substance to undergo a chemical reaction.
  2. 3. A starting substance in a chemical reaction.
  3. 6. Reaction where a more reactive metal takes the place of a less reactive metal in a compound.
  4. 9. Elements on the left of the stepped line of the Periodic Table.
  5. 10. Elements on the right of the stepped line of the Periodic Table.
  6. 12. A substance that stores energy in a chemical store which it can release as heat.
Down
  1. 1. A change in which it is possible to get back to the original substances.
  2. 4. A chemical reaction in which a substance reacts quickly with oxygen and gives out light and heat. Also called burning.
  3. 5. A change that is reversible, in which new substances are not made.
  4. 7. A substance that is made in a chemical reaction.
  5. 8. A compound in which the hydrogen atoms of an acid are replaced by atoms of a metal element. (eg Sodium Chloride)
  6. 11. A substance made up of a metal or non-metal element joined to oxygen.