Chemical Reactions

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Across
  1. 2. sign of a chemical reaction
  2. 4. sign of a chemical reaction
  3. 7. elements arranged in this by atomic number
  4. 8. sign of a chemical reaction
  5. 10. substance made of only type of atom
  6. 12. name of compound produced by sodium and oxygen reacting together
  7. 13. when two or more elements are joined together
  8. 14. sign of a chemical reaction
  9. 17. burns with a pop
  10. 18. element with the symbol C
Down
  1. 1. element with the symbol Rn
  2. 3. substances in a mixture are not joined together this way...
  3. 5. turns limewater cloudy
  4. 6. used to summarise chemical reactions
  5. 9. columns of the periodic table
  6. 11. element with the symbol Sn
  7. 12. used to represent each element
  8. 14. Rows of the periodic table
  9. 15. symbol of the element strontium
  10. 16. relights a glowing splint