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Choose the reaction that represents the combustion of C6H12O2.

C6H12O2 (l) ? 6 C (s) + 6 H2 (g) + O2 (g)

Mg (s) + C6H12O2 (l) ? MgC6H12O2 (aq)

6 C (s) + 6 H2 (g) + O2 (g) ? C6H12O2 (l)

C6H12O2 (l) + 8 O2 (g) ? 6 CO2 (g) + 6 H2O (g)

None of the above represent the combustion of C6H12O2.

The last reaction

C6H12O2 (l) + 8 O2 (g) → 6 CO2 (g) + 6 H2O (g)

Explanation:

The complete combustion of organic compounds that are made of carbon, hydrogen and oxygen only produce water and carbon dioxide which are oxides of carbon and hydrogen. The first reaction produced hydrogen, hydrogen can never be a product of a combustion because hydrogen itself combusts to form water.

The second and third reactions do not have the reactants stipulated.