Answer:
2Al(s) + 3H₂SO₄(aq) → Al₂(SO₄)₃(aq) + 3H₂(g)
Step-by-step explanation:
- Balancing chemical equations involves putting coefficients on the products and reactants of a chemical reaction.
- Balancing a chemical equation ensures that the number of atoms of each element is equal on both sides of the equation.
In this case;
The unbalanced equation is; Al + H₂SO₄ → Al₂(SO₄)₃ + H₂
- Note that, atoms of Al, S and O are unbalanced while atoms of H are balanced.
- To balance the equation we put appropriate coefficients, 2, 3, 1, 3
2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂
- We get, 2 Aluminium atoms, 6 Hydrogen atoms, 3 Sulfur atoms and 12 Oxygen atoms on both sides of the equation.
- Therefore the balanced equation is;
2Al(s) + 3H₂SO₄(aq) → Al₂(SO₄)₃(aq) + 3H₂(g)
- Note that, a balanced chemical equation obeys the law of conservation of mass.