Question

Calcium carbonate breaks down on heating to produce calcium oxide and carbon dioxide gas.

CaCO3 ® CaO = CO2

A student heats 15 g of calcium carbonate strongly in a crucible.

Relative atomic masses (Ar): Ca = 40, C = 12, O = 16.

a Calculate the number of moles in 15 g of calcium carbonate. (2 marks)

b Use your answer to part a to determine the number of moles of calcium oxide that will be produced. (1 mark)

c Calculate the mass of calcium oxide produced by this reaction.

Answer 1

Answer:

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