Homework Clinic
Science Clinic => Chemistry => Topic started by: ap345 on Aug 27, 2018
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A first-order reaction has a rate constant of 0.33 min-1. It takes ________ min for the reactant concentration to decrease from 0.13 M to 0.066 M.
A) 0.085
B) 0.13
C) 0.89
D) 2.4
E) 2.1
Question 2
Cardiovascular diseases are responsible for approximately ________ of deaths in the United States.
A) 12
B) 25
C) 34
D) 50
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Answer to Question 1
E
Answer to Question 2
C