Q. Balance the equation: CaCO3+ HClCaCl2+ H2O + CO2
Ans:- The given chemical equation is CaCO3+ HClCaCl2+ H2O + CO2.
Calcium Carbonate + Hydrogen Chloride → Calcium Chloride + Water + Carbon Dioxide
Balanced chemical equation: CaCO3+ 2HClCaCl2+ H2O + CO2
Information provided by the equation:
- Calcium carbonate combines with [dil.] hydrochloric acid to form calcium chloride, water, and CO2.
- When one molecule of calcium carbonate combines with two molecules of acid, one molecule of calcium chloride, one molecule of water, and one molecule of carbon dioxide are produced.
- A molecule of calcium chloride, for example, has one atom of calcium, one atom of carbon, and three atoms of oxygen in its chemical composition.
- Molecular masses, resulting in 111 parts by weight of calcium chloride, 18 parts by weight of water, and 44 parts by weight of carbon dioxide when 100 parts by weight of calcium carbonate interacts with 73 parts by weight of hydrochloric acid.
- The reaction is unstoppable.
- The state of the substances present, such as solid, liquid, or gas.
Note: Calcium carbonate is not very soluble in water. This is an acid-base (neutralisation) reaction: HCl is an acid, while CaCO3 is a basic.
Balanced Chemical Equation:
A chemical equation is a representation of a chemical process in the form of substances. A balanced chemical equation is one in which the number of atoms in all of the molecules is equal on both sides of the equation.
- The balancing of a chemical equation is governed by the Law of Conservation of Mass.
- This law asserts that mass cannot be created or destroyed in a chemical reaction, and that the total mass of elements or molecules present on the reactant side must equal the total mass of elements or molecules present on the product side.
- The law of conservation does not apply if the chemical equation is not balanced.