Combustion of a hydrocarbon will release more energy than combustion of an equal mass of carbohydrate because
A) the C-O and O-H single bonds in carbohydrates are weak.
B) carbohydrates contain C-O and O-H bonds and hydrocarbons do not.
C) the total energy of the C-C and C-H bonds in hydrocarbons is greater than the total energy of the C=O and O-H bonds in the combustion products (carbon dioxide and water) .
D) the total energy of the bonds in hydrocarbons is greater than the energy of the bonds in carbohydrates.
E) hydrocarbons have higher molar masses than carbohydrates.
Correct Answer:
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