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Question

X+HClZnCl2+H2O+CO2

Find X and balance the equation.


A

ZnCO + 2 HCl → ZnCl2 + H2O + CO2

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B

2 ZnCl + HCl → ZnCl2 + H2O + CO2

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C

ZnCO3 + 2HCl →ZnCl2 + H2O + CO2

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D

2ZnCO3 + HCl → 2ZnCl2 + H2O + CO2

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Solution

The correct option is C

ZnCO3 + 2HCl →ZnCl2 + H2O + CO2


Acids react with metal carbonates and bicarbonates to produce carbon dioxide gas, which is indicated by its strong effervescence. The other products are salt and water. X is zinc carbonate.

ZnCO3+2HClZnCl2+H2O+CO2


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