An equation must be balanced in order to comply with the “Law of Conservation of Matter”,which states that matter is neither be created nor be destroyed in the course of a chemical reaction. An unbalanced equation would imply that atoms have been created or destroyed.
The total number of atoms of each element in the reactants, on the left side of the equation , is the same as the number of atoms in the products formed , on the right side of the equation .
A chemical equation tells us what are the substances formed as a result of the reaction is calle products.
A chemical equation tells us what substances are involved in a given reaction is called reactants.
A chemical equation is the symbolic representation of a chemical reaction using the symbols and formulae of the substances involved in the reaction.
The molecule of a compound is usually made up of two parts and these parts are separately known as radicals.
The symbolic representation of a molecules is known as formula.
The electrons in the outer most shell of the atom are known as valence electrons .
The valency of an elements is a measure of its combining power with other elements.
It represents : Name of the element One atom of the element A definte mass of the element.
