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

Responses

6H2O+6CO2→C6H12O6+6O2
6 H sub 2 O plus 6 C O sub 2 to C sub 6 H sub 12 O sub 6 plus 6 O sub 2

6H2O+6CO2→C3H6O3+3O2
6 H sub 2 O plus 6 C O sub 2 rightarrow C sub 3 H sub 6 O sub 3 plus 3 O sub 2

3H2O+3CO2→C6H12O6+6O2
3 H sub 2 O plus 3 C O sub 2 rightarrow C sub 6 H sub 12 O sub 6 plus 6 O sub 2

6H2O+10CO2→C6H12O6+4O2

1 answer

The equation that best represents the conservation of matter is the one where the number of atoms for each element is the same on both sides of the equation. That is:

6H2O + 6CO2 → C6H12O6 + 6O2

In this equation, we have:

  • Reactants:

    • 6 H2O (6 oxygen and 12 hydrogen atoms)
    • 6 CO2 (6 carbon and 12 oxygen atoms)
  • Products:

    • C6H12O6 (6 carbon, 12 hydrogen, and 6 oxygen atoms)
    • 6 O2 (12 oxygen atoms)

Counting the atoms:

  • Carbon: 6 (from C6H12O6)
  • Hydrogen: 12 (from C6H12O6)
  • Oxygen: 6 (from C6H12O6) + 12 (from 6 O2) = 18 total oxygen (6 from H2O and 12 from CO2)

Thus, the total number of atoms of each element is conserved.

The other options do not correctly maintain the balance of atoms, meaning they do not represent conservation of matter.