Science Revision - Atoms Elements and Compounds

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Across
  1. 4. What element has the chemical symbol Mg
  2. 6. What element has the chemical symbol C
  3. 10. Used to separate elements in compounds using heat
  4. 11. What element has the chemical symbol O
Down
  1. 1. Complete the word equation: Calcium + Carbon + Oxygen → Calcium _________
  2. 2. Complete the word equation: Iron + Sulfur → Iron ______
  3. 3. What element has the chemical symbol Fe
  4. 5. What element has the chemical symbol Au
  5. 7. What element has the chemical symbol Br
  6. 8. To check if a chemical reaction has happened you can see if a ___ has been given off.
  7. 9. To check if a chemical reaction has happened you can see if there is a change of _______.