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Question

Making use of any of the substances given, write the balanced equations for the reactions by which you could obtain carbon dioxide gas.
Sodium carbonate, sulphuric acid, lead, sodium sulphite, calcium carbonate.

A
2Na2CO3+H2SO42Na2SO4+H2O+CO2
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B
Na2CO3+3H2SO4Na2SO4+3H2O+CO2
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C
Na2CO3+H2SO4Na2SO4+H2O+CO2
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D
4Na2CO3+H2SO42Na2SO4+H2O+4CO2
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