The equation that best represents the conservation of matter is:
6H2O + 6CO2 → C6H12O6 + 6O2
This equation accurately reflects the law of conservation of mass, where the number of each type of atom on the reactants side (left) is equal to the number of each type of atom on the products side (right).
In this case:
-
Reactants:
- 6 H2O contributes 12 hydrogen atoms and 6 oxygen atoms.
- 6 CO2 contributes 6 carbon atoms and 12 oxygen atoms.
-
Products:
- C6H12O6 has 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.
- 6 O2 contributes 12 oxygen atoms.
Counting shows that all atoms are accounted for:
- Total:
- Carbon: 6 (from C6H12O6)
- Hydrogen: 12 (from C6H12O6)
- Oxygen: 18 (6 from C6H12O6 + 12 from 6 O2)
Thus, the total amounts of each type of atom are the same on both sides of the equation, confirming that it accurately represents the conservation of matter.