Planetary Chemistry

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Across
  1. 2. This is the term used when talking about the amount of matter. Some people wrongly call this weight' (M)
  2. 3. This is the gas in air needed to burn things with (O)
  3. 6. This is the gas made when something has been burnt (CD)
  4. 10. Copper + Chlorine make... (CC)
  5. 12. A yellow non-metal. It has the symbol S in the periodic table.
Down
  1. 1. Chemical reaction used by plants to make food from sunlight (P)
  2. 2. The name given to a group of elements or compounds that are together but not chemically bonded (M)
  3. 4. When a more reactive metal takes the place of a less reactive metal in a compound (D)
  4. 5. The most abundant gas in today's atmosphere (N)
  5. 6. Metals are good C__________ of heat and electricity (C)
  6. 7. An orange metal that is not very reactive (C)
  7. 8. The name given to when more than one element is joined together by chemical bonds (C)
  8. 9. Responsible for forming the early atmosphere (V)
  9. 11. A magnetic metal and the only metal that will rust (I)