Chemistry key terms

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Across
  1. 4. A horizontal row in the periodic table p _ _ _ _ _ _
  2. 5. Two or more substances that are not joined together m _ _ _ _ _ _
  3. 6. A type of reaction when a more reactive metal replaces a less reactive metal from its compound d _ _ _ _ _ _ _ _ _ _ _
  4. 8. A reaction that takes in heat e _ _ _ _ _ _ _ _ _ _
Down
  1. 1. A vertical column in the periodic table containing elements with similar chemical properties g _ _ _ _ _
  2. 2. Two or more different elements which are chemically joined together c _ _ _ _ _ _ _
  3. 3. Burning fuel in oxygen c _ _ _ _ _ _ _ _ _
  4. 7. A substance containing only one type of atom e _ _ _ _ _ _