Other questions in this quiz

2. CO2 is mostly caused by

  • trees
  • combustion
  • dead organism releasing respiration
  • oceans

3. limestone is also know as.....

  • calcium sulphate
  • sodium chlorine
  • calcium carbonate ( solid)
  • calcium chlorine

4. sing bond carbon atoms are?

  • pvc
  • alkenes
  • alkanes
  • ethonal

5. which is true?

  • ethane is C2H4
  • propane is C4H9
  • ethene is C3H8
  • ethane is C4H7

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