Consider the formula for glucose: c6h12o6. what does this indicate about the relationship of the reactants to glucose? a. twelve water (h2o) molecules were used to make it. b. twelve hydrogen (h2) molecules were used to make it. c. six oxygen (o2) molecules were used to make it. d. six carbon dioxide (co2) molecules were used to make it.

The correct answer is:

D.Six carbon dioxide (CO2) molecules were used to make it.

The explanation:

when The balanced equation for the reaction of formation of glucose is:

6CO2+6H2O=C6H12O6+6O2.

From the balanced chemical reaction:

1- six carbon dioxide molecules were used to make glucose.

2- six water (H2O) molecules were used to make glucose.

3- six oxygen (O2) molecules were produced

So the correct answer is D Six carbon dioxide (CO2) molecules were used to make it because O2 is a product not reactant, and there is only 6 H2O molecules not 12.

it means there are 3 atoms of oxygen