The equation that best represents the conservation of matter is:
6H2O + 6CO2 → C6H12O6 + 6O2
This equation balances both the number of each type of atom on the reactant side (left) and the product side (right). Specifically, it accounts for:
- 6 carbon atoms (from 6 CO2)
- 12 hydrogen atoms (from 6 H2O)
- 18 oxygen atoms (6 from H2O and 12 from CO2)
On the product side (C6H12O6 + 6O2), you also have:
- 6 carbon atoms (from C6H12O6)
- 12 hydrogen atoms (from C6H12O6)
- 18 oxygen atoms (6 from C6H12O6 and 6 from 6O2)
Therefore, the equation maintains the conservation of matter, as the number of each atom is the same on both sides.