page 558 1-10

page 558 1-10

 1. From a chemical viewpoint, why is petroleum sometimes considered "burring sunshine"?

Because it produces energy a lot of energy and fuel. 

2.Define and give one example of

a. Potential energy. Where something could have the energy to go, like a skater at the top of the ramp

b. Kinetic energy. When something actually has energy and it keeps going. Whent he skater goes down the ramp

3. In terms of chemical bonds, what happens during a chemical reaction?

Bonds break and reactant atoms reorganize to form new bonds

4. Based on its structural formula, which has more potential energy, a molecule of methane or a molecule of butane ? Explain your answer

Butane has more atoms meaning has more energy

5. Classify each of the following as primarily as demonstrate of kinetic energy or potential energy

a. Potential

b Potential 

c. Kinetic

d.Potential 

e.Kinetic

6. Why is energy required to break chemical bonds?

Because you need energy to break up the atoms

7. For each of the follow events determine whether the reaction is exothermic of endothermic.

a. Exothermic

b.Endothermic

c. Exothermic

8. Burning a candle is a exothermic retain. Explain this fact in terms of the quantity of energy stored in the bonds of the reactant compared with the quantity of energy stored in the bonds of the products.

There is a lot of energy in the gas

9.Using figure 3.24 as a model draw a potential energy diagram that illustrates the energy change whe hydrogen gas reacts with oxygen gas to produce water and thermal energy.

Look on paper

10. State the law of conservation of energy.

Energy is neither created or destroyed