1.What is the total energy change for the following reaction: H2 + I2 -> 2HI?

Given:
H-H bond: 436 kJ/mol
I-I bond: 151 kJ/mol
H-I bond: 297 kJ/mol
A. +297 kJ/mol
B. +7 kJ/mol
C. -7 kJ/mol
D. -290 kJ/mol
2.While camping you light a small campfire, initiating the combustion of wood to produce heat and light. What can you determine about this reaction?
A. It is endothermic.
B. The bond breaking energy is more than 600 kJ.
C. It is exothermic.
D. The bond making energy is more than 600 kJ.
3.Activation energy is:
A. None of these.
B. The maximum amount of energy reactants can hold.
C. The energy needed to begin breaking the bonds of products.
D. The energy needed to begin breaking the bonds of reactants.
4.Sodium hydroxide and water will react at room temperature. What does this indicate about its activation energy?
A. The reaction cannot reach activation energy.
B. The activation energy is very high.
C. The activation energy is at exactly 600 kJ.
D. The activation energy is very low.