Write the equations CaC2-C2H2-CO2-CaCO3

Calcium carbide interacts with water to form acetylene and calcium hydroxide.

CaC2 + 2H2O = Ca (OH) 2 + C2H2.

Acetylene burns to form carbon monoxide (IV) and water.

2C2H2 + 5O2 = 4 CO2 + 2H2O.

We obtain calcium carbonate by composing the reaction equation between calcium oxide and carbon monoxide (IV).

CaO + CO2 = Ca CO3.

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