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

Question

Responses

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+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

6H2O+10CO2→C6H12O6+4O2
6 H sub 2 O plus 10 C O sub 2 rightarrow C sub 6 H sub 12 O sub 6 plus 4 O sub 2

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

Answer 1

To determine which equation best represents the conservation of matter, we need to check that the number of atoms of each element is the same on both the reactant and product sides of the equation.

Let's analyze each equation:

1. 3H2O + 3CO2 → C6H12O6 + 6O2

   • Reactants:
     • H: 6 (from 3 H2O)
     • C: 3 (from 3 CO2)
     • O: 9 (3 from H2O + 6 from CO2)
   • Products:
     • H: 12 (from C6H12O6)
     • C: 6 (from C6H12O6)
     • O: 12 (6 from C6H12O6 + 6 from O2)
   • Not balanced.

2. 6H2O + 6CO2 → C3H6O3 + 3O2

   • Reactants:
     • H: 12 (from 6 H2O)
     • C: 6 (from 6 CO2)
     • O: 24 (6 from H2O + 12 from CO2)
   • Products:
     • H: 6 (from C3H6O3)
     • C: 3 (from C3H6O3)
     • O: 9 (3 from C3H6O3 + 6 from O2)
   • Not balanced.

3. 6H2O + 10CO2 → C6H12O6 + 4O2

   • Reactants:
     • H: 12 (from 6 H2O)
     • C: 10 (from 10 CO2)
     • O: 36 (6 from H2O + 20 from CO2)
   • Products:
     • H: 12 (from C6H12O6)
     • C: 6 (from C6H12O6)
     • O: 32 (6 from C6H12O6 + 8 from 4 O2)
   • Not balanced.

4. 6H2O + 6CO2 → C6H12O6 + 6O2

   • Reactants:
     • H: 12 (from 6 H2O)
     • C: 6 (from 6 CO2)
     • O: 24 (6 from H2O + 12 from CO2)
   • Products:
     • H: 12 (from C6H12O6)
     • C: 6 (from C6H12O6)
     • O: 24 (6 from C6H12O6 + 12 from 6 O2)
   • Balanced.

The last equation (4) is the only one that correctly balances both sides for all elements, which reflects the conservation of matter.

So, the best response that represents the conservation of matter is:

6H2O + 6CO2 → C6H12O6 + 6O2