Preserving food by freezing controls reaction rates by
A) decreasing the number of collisions
B) increasing concentration
C) changing the number of effective reactant collisions
D) both a and c are correct
Correct Answer:
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Q4: A catalyst speeds up a reaction rate
Q14: What numbers are needed to balance
Q15: What is the molar mass of H2SO4?
A)
Q16: Refer to Exhibit 8-1.What weight of ZnCl2
Q17: Which is not a statement of the
Q19: Which is necessary for a chemical reaction
Q20: According to the first law of thermodynamics,
A)
Q21: If you remove some CO2(g) from
Q23: Which will have the smallest molar mass?
A)
Q35: Favorable chemical reactions
A) are generally explosive.
B) absorb
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