Question

How do Metal Carbonates and Metal Hydrogencarbonates React with Acids

NCERT Class 10th Science Chapter 2 Acids Bases and Salts

Answer 1

Metal Carbonates and Metal Hydrogen Carbonates react with Acids to form Metal Salt, Water and Carbon Dioxide Gas.

In Basic Equation Form, we can write:

$\text{Metal Carbonate/Bicarbonate}+\text{Acid} \to \text{Metal Salt}+H_2O+CO_2$

Sodium Carbonate $Na_2CO_3$, Zinc Carbonate $ZnCO_3$, Calcium Carbonate $CaCO_3$ are some examples of Metal Carbonates.

Hydrogen Carbonates are also known as Bicarbonates. $NaHCO_3$, $Ca(HCO_3)_2$, etc are some examples.

Hydrochloric acid $HCl$, Sulphuric Acid $H_2SO_4$, etc are some examples of acids.

We can take some examples of the complete reactions as well.

$\rm Na_2CO_3_{(s)} + 2HCl_{(aq)} \to 2NaCl_{(aq)}+H_2O_{(l)}+CO_2_{(g)}$

$\rm NaHCO_3_{(s)} + HCl_{(aq)} \to NaCl_{(aq)}+H_2O_{(l)}+CO_2_{(g)}$

$\rm ZnCO_3_{(s)} + 2HNO_{3(aq)} \to (ZnNO_3)_{2(aq)}+H_2O_{(l)}+CO_2_{(g)}$