Write the balanced equation for the reaction of aqueous sodium carbonate and aqueous calcium chloride dihydrate to form solid calcium carbonate, aqueous sodium chloride and liquid water

The balanced chemical equation is written below.

Explanation:

Every balanced chemical equation follows law of conservation of mass.

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The chemical equation for the reaction of sodium carbonate and calcium chloride follows:

By Stoichiometry of the reaction:

1 mole of sodium carbonate reacts with 1 mole of calcium chloride dihydrate to produce 1 mole of calcium carbonate, 2 moles of sodium chloride and 2 moles of water.

Hence, the balanced chemical equation is written above.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.