Balance the following equation:
Al2O3 + H2SO4 Al2(SO4)3 + H2O
Balanced chemical equation:
A chemical equation in which the numbers of atoms of each element on both the sides of the equation is equal is called balanced equation.
Step 1 : Representation of the chemical reaction
Al2O3 + H2SO4 Al2(SO4)3 + H2O
Step 2 : Calculating the number of atoms on both side of reaction
Elements | Number of atoms on reactant side | Number of atoms on product side |
Al | 2 | 2 |
H | 2 | 2 |
O | 7 | 13 |
S | 1 | 3 |
Step 3: Balancing the uneven numbers of atoms on both the side of reaction
i.e.
Al2O3 + 3H2SO4 Al2(SO4)3 + 3H2O
Elements | Number of atoms on reactant side | Number of atoms on product side |
Al | 2 | 2 |
H | 2 | 2 |
O | 15 | 15 |
S | 3 | 3 |
Hence, the equation is balanced.
Al2O3 (s) + 3H2SO4(aq) Al2(SO4)3 (aq) + 3H2O (l)
Aluminum oxide Sulfuric acid Aluminum sulfate Water.