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1. First-order reaction A has a half-life of 5.0 days. Find its rate constant.
.14 .13 3.4 7.2 3.3

2. After 5.0 minutes a .50 molar solution is left. Find the reaction rate if the initial amount of the solution was 1.0 molar.
0.10 mol/L*s 0.10 mol/L*min. 5.0 mol/L*s 5.0 mol/mL*min 2.0 mol/L*min

3. The energy needed to overcome for a reaction to occur is called:
activation energy energy of vaporization specific heat potential energy kinetic energy

4. The collection of a substance on the surface of another is:
absorption magnetic leechy sticky adsorption

5. Which statement regarding the rate determining step is TRUE:
All reactions have a rate determining step Rate determining steps can only be unimolecular The step is usually slow The step is usually fast Overall reaction has to be faster than the rate determining step

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