According to Law of conservation of mass, the mass and the number of atoms present in the reactant(s) should be equal to the mass and number of atoms present in product(s).
To balance a chemical equation, following steps are followed:
• Check the number of atoms of each element present on RHS and LHS of a equation whether they are equivalent or not.
• If not, multiply the element by a number to the corresponding element.
• Continue multiplying until all numbers become equivalent to the corresponding element.
e.g. `Na_2O + HCl → NaCl+H_2O`
Balancing of Equation
Element | LHS | RHS |
Na | 2 | `1 xx 2 = 2` |
O | 1 | 1 |
H | `1xx2 =2` | 2 |
Cl | `1xx2= 2` | `1xx2 = 2` |
The balanced chemical equation is `Na_2O+2HCl → 2NaCl + H_2O`
A balanced chemical equation can provide the following information regarding the chemical reaction:
• The number of atoms and molecules taking part in the reaction and the corresponding masses in atomic mass unit (amu or u).
• The number of moles taking part in the reaction, with the corresponding masses in grams or in other convenient units.
• Relationship between the volume of the reactants and the products if all of them are in the gaseous state.
According to Law of conservation of mass, the mass and the number of atoms present in the reactant(s) should be equal to the mass and number of atoms present in product(s).
To balance a chemical equation, following steps are followed:
• Check the number of atoms of each element present on RHS and LHS of a equation whether they are equivalent or not.
• If not, multiply the element by a number to the corresponding element.
• Continue multiplying until all numbers become equivalent to the corresponding element.
e.g. `Na_2O + HCl → NaCl+H_2O`
Balancing of Equation
Element | LHS | RHS |
Na | 2 | `1 xx 2 = 2` |
O | 1 | 1 |
H | `1xx2 =2` | 2 |
Cl | `1xx2= 2` | `1xx2 = 2` |
The balanced chemical equation is `Na_2O+2HCl → 2NaCl + H_2O`
A balanced chemical equation can provide the following information regarding the chemical reaction:
• The number of atoms and molecules taking part in the reaction and the corresponding masses in atomic mass unit (amu or u).
• The number of moles taking part in the reaction, with the corresponding masses in grams or in other convenient units.
• Relationship between the volume of the reactants and the products if all of them are in the gaseous state.