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6. What if I heat and cool it and it goes from white to yellow, and back to white again?

  • Calcium Hydroxide
  • Zinc Carbonate
  • Copper Carbonate

7. If I add bromine water to my substance and it goes clear then what is in my substance?

  • H-C Bonds
  • C=C bonds
  • H=C bonds
  • C-C Bonds

8. If I burn a Hydrocarbon in Air and collect 22g of CO2 and 27g of H20, what is the empirical formula of my Hydrocarbon?

  • CH2
  • C2H
  • C2H5

9. If I add HCl and NAOH to my substance, and I obtain both a blue precipitate and a Gas which turns red litmus paper blue; what is my substance?

  • Copper Nitrate
  • Calcium Cabonate
  • Copper Oxide