The Problem 1. Use the balanced combustion reaction above to calculate the enthalpy of combustion (Hcomb) for C8H10. 2. Use combustion enthalpy to calculate the number of kilograms of C8H10 burned to generate the same amount of energy as the nuclear reactors. 3. Calculate the number of Liters of CO2 produced (at 1520. mmHg and 250.C) if the amount of C8H10 found in 2. is burned?

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )

0.88m hope i am correct : )