Unit 3 Section C Summary HW Problems Pt. 2

#10:

#11:
a. Pentane: C5H12 + 8O2 --> 5CO2 + 6H2O
b. Propane: C3H8 + 5O2 --> 3CO2 + 4H2O
c. Hexane: 2C6H14 + 19O2 --> 12CO2 + 14H20

#1:
a. Chemical bonds break by pulling apart.
b. It requires energy.
c. They both have to be separated.
d. The chemical bonds are like magnets, they "snap" together.

#4:
a. Yes, because when the fuels combust they release energy, making it an exothermic reaction.
b. Coals, oils, and natural gases.