The chief reason why reaction rates increase with temperature is that a rise in temperature increases the number of
A) ions.
B) polar molecules.
C) fast-moving molecules.
D) activated molecules.
Correct Answer:
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Q5: Approximately 4/5 of dry air consists of
A)oxygen.
B)nitrogen.
C)carbon
Q6: Chemical reactions that give off energy are
Q7: One mole of which of the following
Q9: The mass of 1 mole of oxygen,
Q12: A mole of any compound contains Avogadro's
Q13: According to Aristotle, every flammable material consisted
Q13: For a reaction that takes place
Q18: If a certain reaction is endothermic, the
Q19: An oxide decomposed by heating will give
A)
Q20: An example of slow oxidation is
A) a
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