SnCl₂ (aq) + H₂O (l) → SnO₂ (s) + 2 HCl (aq)
Explanation:
* SnCl₂ (aq): Tin chloride in aqueous solution.
* H₂O (l): Water in liquid form.
* SnO₂ (s): Tin oxide, a solid precipitate.
* 2 HCl (aq): Hydrochloric acid in aqueous solution.
Balancing the equation:
* There is one Sn atom on each side.
* There are two Cl atoms on the left and two on the right.
* There are two H atoms on the left and two on the right.
* There is one O atom on the left and one on the right.
Therefore, the equation is balanced.