1. Identify the Reactants and Products:

* Reactants: SnO₂ (tin oxide) and H₂ (hydrogen gas)

* Products: Sn (tin) and H₂O (water)

2. Count Atoms on Each Side:

| Element | Reactants | Products |

|---|---|---|

| Sn | 1 | 1 |

| O | 2 | 1 |

| H | 2 | 2 |

3. Balance the Oxygen Atoms:

* There are 2 oxygen atoms on the reactant side and only 1 on the product side.

* Add a coefficient of 2 in front of H₂O:

SnO₂ + H₂ → Sn + 2H₂O

4. Balance the Hydrogen Atoms:

* Now, we have 4 hydrogen atoms on the product side and 2 on the reactant side.

* Add a coefficient of 2 in front of H₂:

SnO₂ + 2H₂ → Sn + 2H₂O

5. Check for Balanced Equation:

* Sn: 1 on each side

* O: 2 on each side

* H: 4 on each side

The balanced chemical equation is:

SnO₂ + 2H₂ → Sn + 2H₂O