What are the products of the combustion of C6H12O6, and what is the balanced equation of the combustion?

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ncchemist | eNotes Employee

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C6H12O6 is glucose, a sugar.  If it is completely combusted, the only two products will be carbon dioxide and water.  Oxygen will also be present from the atmosphere.  The unbalanced equation is shown below.

C6H12O6 + O2 --> CO2 + H2O

The six carbons from the glucose will all go to CO2, so we need to add a six there.

C6H12O6 + O2 --> 6CO2 + H2O

The twelve hydrogens from the glucose will all go to H2O, so we need to add a six there.

C6H12O6 + O2 --> 6CO2 + 6H2O

Now we need to balance out the oxygens.  There 6 from the glucose on the left and a total of 18 on the right.  So we need twelve more on the left, which means we need a six in front of the O2.

C6H12O6 + 6O2 --> 6CO2 + 6H2O

That is the balanced equation.

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