Chemical reactions

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Across
  1. 3. Evidence of a chemical reaction.
  2. 6. A reactive metal near the top of the reactivity series.
  3. 8. A list of metals from most to least reactive.
  4. 9. A chemical reaction where a more reactive metal "steals" from a less reactive metal.
  5. 10. A waste product of combustion.
Down
  1. 1. This is conserved during a chemical reaction.
  2. 2. When combustion occurs but there isn't a plentiful supply of oxygen so carbon and carbon monoxide are formed as waste products.
  3. 3. When something new is made and it is difficult to reverse.
  4. 4. The chemical reaction where fuels react with oxygen to release energy.
  5. 5. A very unreactive metal that we use for jewellery.
  6. 7. A reversible change where nothing new is made.