Question

Reaction of calcium hydroxide with carbon dioxide balance reaction

Answer 1

Answer: When calcium hydroxide reacts with carbon dioxide, it produces calcium carbonate and water.

In this reaction, when carbon dioxide gas reacts with slaked lime called calcium hydroxide, the solution becomes milky due to the formation of calcium carbonate and calcium carbonate is insoluble in water. So, the solution becomes milky.

Now, see the balanced chemical equation or reaction:

Ca(OH)2 (aq) + CO2 (g) -----> CaCO3 (s) + H2O (l)

In this reaction,

* The number of atom of calcium in the reactant side is equal to the number of atom of calcium in the product side is 1.

* The number of atoms of hydrogen in the reactant side is equal to the number of atoms of hydrogen in product side is 2.

* The number of atoms of oxygen in the reactant side is equal to the number of atoms of oxygen in product side is 4.

* The number of atom of carbon in the reactant side is equal to the number of atom of carbon in product side is 1.

In this reaction,

* Calcium hydroxide is in aqueous state.

* Carbon dioxide is in gaseous state.

* Calcium carbonate is in solid state.

* Water is in liquid state.

Answer 2

Answer:

When calcium hydroxide reacts with carbon dioxide , it forms calcium carbonate and water. This can be illustrated as follows:-

Ca(OH)2( Calcium hydroxide)( aq)+ CO2( Carbon dioxide)(g)----->CaCO3( Calcium carbonate)(s) + H2O( water)(l)

This is a balanced equation and need not further to be balanced.

This is also an example of precipitation reaction.

I hope this would really help.