PbCO₃(s) + 2 HNO₃(aq) → Pb(NO₃)₂(aq) + H₂O(l) + CO₂(g)
Here's a breakdown of what happens:
* Lead(II) carbonate (PbCO₃): This is a solid, white compound.
* Nitric acid (HNO₃): This is a strong acid, meaning it readily donates protons (H+).
* Lead(II) nitrate (Pb(NO₃)₂): This is a soluble salt formed in the reaction. It dissolves in water, producing lead(II) ions (Pb²⁺) and nitrate ions (NO₃⁻).
* Water (H₂O): This is a liquid formed as a result of the reaction.
* Carbon dioxide (CO₂): This is a gas produced as a result of the reaction. It is responsible for the fizzing you would observe.
In simple terms:
When lead(II) carbonate reacts with nitric acid, the acid breaks down the carbonate ion (CO₃²⁻) into carbon dioxide gas and water. The lead(II) ions then combine with the nitrate ions from the acid to form lead(II) nitrate.
Observation:
The reaction is readily apparent. You'll see fizzing as carbon dioxide gas is released. The solid lead(II) carbonate will dissolve as the reaction proceeds, and a colorless solution of lead(II) nitrate will be formed.
