Question

A white solid has the same chemical formula as marble. On heating , it produces a colourless gas which puts off a burning splinter. What is the formula of the white solid and what is the gas formed? Explain the complete reaction with the help of a chemical. Equation

Answer 1

Chalk - calcium carbonate

CaCO3

CaCO3 ➡️ CaO + CO2

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Answer 2

Answer:

Chalk - calcium carbonate(CaCO3)

Explanation:

CaCO3 _ CaO + CO2

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