Which of the following is true of effective collisions?

A) The number of effective collisions determines the reaction rate.
B) The number of effective collisions increases as the temperature is increased.
C) both a and b
D) neither a nor b


C

Environmental & Atmospheric Sciences

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Fill in the blank(s) with correct word

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Answer the following statement true (T) or false (F)

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Which Soviet leader introduced new policies of glasnost and perestroika to allow a more democratic political system?

a. Gorbachev b. Putin c. Lenin d. Stalin e. Yeltsin

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Folk songs are distinguished from popular songs because they

A) tell a story about daily activities. B) can be understood only by one group. C) are never changed from one generation to the next. D) are only transmitted orally. E) are written by specialists for commercial distribution.

Environmental & Atmospheric Sciences