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Question

What are the products obtained when an acid reacts with a metal carbonate?

A
Salt and water
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B
Salt and hydrogen gas
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C
Salt, water and carbon dioxide
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D
Salt and oxygen gas
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Solution

The correct option is C Salt, water and carbon dioxide
When an acid reacts with a metal carbonate, it produces water, carbon dioxide and salt.

Acid (aq)+Metal carbonate(s)Salt (aq)+Water (l)+Carbon dioxide (g)

For example:
When sulphuric acid reacts with magnesium carbonate, it produces magnesium sulphate, water and carbon dioxide.

H2SO4 (aq)+MgCO3(s)MgSO4 (aq)+H2O (l)+CO2 (g)

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