Chemical Reactions and equations

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Across
  1. 4. ________ reaction is the opposite of combination reaction
  2. 6. Addition of hydrogen or removal of oxygen is termed as _______ reaction.
  3. 7. _________ reactions absorbs heat
Down
  1. 1. A type of reaction where part of one reactant is replaced by another reactant to form a new compound
  2. 2. The type of compound formed by combining an element with oxygen
  3. 3. The chemical name of quick lime is _______ oxide.
  4. 5. A chemical equation is balanced by changing or adding _____