Other questions in this quiz

2. Which of these is limestone used for?

  • Building
  • Engineering

3. When calcium carbonate has been heated, what does it produce when it decomposes?

  • Calcium oxide and Carbon dioxide
  • Calcium oxide and Carbon oxide
  • Carbon dioxide and calcium

4. What is limestone mainly made of?

  • Calcium carbonate
  • Water
  • Carbon dioxide

5. What is the chemical symbol for calcium oxide?

  • CaO
  • 2CaO
  • Ca2o

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