3SBS pg.258 #1-10

1) Petroleum is called "buried sunshine" because the energy released by burning fossil fuels represents energy originally captured from the sunlight.

2)
a. Potential energy is energy of position or condition. An example is when a car moves, the spring unwinds, providing energy to the moving parts.
b. Kinetic energy is energy related to motion. An example is the movement of a car based on converting potential energy into kinetic energy.

3) When a chemical reaction takes place and releases energy, bonds break and reatant atoms reorganize to form new bonds.

4) Butane has more potential energy because it has a higher boiling and more carbons.

5)
a. Potential energy
b. Potential energy
c. Kinetic energy
d. Potential energy
e. Kinetic energy

6) Energy is requires to break chemical bonds because the process yeilds products with different and more stable bonding arrangements of their atoms. Some of the energy stored in the reactants is released to form heat and light.

7)
a. Exothermic, because energy is being released.
b. Endothermic, because energy is needed for the process.
c. Endothermic, because energy is needed for the process.

8) Burning candle is an exothermic reaction because there is more energy in the product than in the reaction to begin with. 

9) I don't get it. 

10) The law of conservation of energy states that energy is neither created nor destroyed.