Which equation best represents conservation of matter?(1 point)

The equation that best represents the conservation of matter is the one where the number of each type of atom on the reactant side equals the number on the product side.

Let's analyze each option:

1. **6H2O + 10CO2 → C6H12O6 + 4O2**:
- Reactants: 6 H2O has 12 H and 6 O; 10 CO2 has 10 C and 20 O (total = 12 H, 10 C, 26 O).
- Products: C6H12O6 has 6 C, 12 H, and 6 O; 4 O2 has 8 O (total = 12 H, 6 C, 14 O).
- **Not balanced** (O atoms are not equal).

2. **3H2O + 3CO2 → C6H12O6 + 6O2**:
- Reactants: 3 H2O has 6 H and 3 O; 3 CO2 has 3 C and 6 O (total = 6 H, 3 C, 9 O).
- Products: C6H12O6 has 6 C, 12 H, and 6 O; 6 O2 has 12 O (total = 12 H, 6 C, 18 O).
- **Not balanced** (H and O atoms are not equal).

3. **6H2O + 6CO2 → C6H12O6 + 6O2**:
- Reactants: 6 H2O has 12 H and 6 O; 6 CO2 has 6 C and 12 O (total = 12 H, 6 C, 18 O).
- Products: C6H12O6 has 6 C, 12 H, and 6 O; 6 O2 has 12 O (total = 12 H, 6 C, 18 O).
- **Balanced** (all atoms are equal).

4. **6H2O + 6CO2 → C3H6O3 + 3O2**:
- Reactants: 6 H2O has 12 H and 6 O; 6 CO2 has 6 C and 12 O (total = 12 H, 6 C, 18 O).
- Products: C3H6O3 has 3 C, 6 H, and 3 O; 3 O2 has 6 O (total = 6 H, 3 C, 9 O).
- **Not balanced** (O and C atoms are not equal).

The only equation that correctly represents the conservation of matter, where the number of each type of atom is balanced, is:

**6H2O + 6CO2 → C6H12O6 + 6O2**.