1. Which of the following reactions is endothermic?

a.

b.

c.

A + B → AB

ΔH = - 275 kJ/mol

CD + 300 kJ/mol → C + D

d. A dissolution reaction in a calorimeter where the initial temperature is 13°C and the

final temperature is 22°C.

2. Which equation would correctly calculate the enthalpy for the reaction: 2H2 + O2(g) → 2H2O(g)?

3. Which of the following best describes the changes in reaction rate for the reactants as a reaction

progresses?

a. Reaction rate is highe...
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