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

3. Which statement concerning a catalyst is TRUE:
Catalyst raises the activation energy Enzymes are not catalysts Catalyst speeds up a reaction In a reaction the catalyst is usually consumed Catalyst increased the cost of production

4. As temperature increases, the reaction rate...
decrease then increase decreases increases stays the same increase then decrease

5. Which of these is NOT a differential rate law?
k[A][B] k[B]2 ln[A]0 - kt [B]0/2k .693/k

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