Why does reaction rate increase as the temperature increases?
Particles begin to collide at higher temperatures
At higher temperatures particles move faster and collide more often
There are more particles at higher temperatures, so they collide more
Which of the following statements about collisions is correct?
All colliding particles have the same amount of energy
Only fast-moving particles collide with each other
Reactions can happen if the colliding particles have enough energy
What will speed up a reaction?
Why do not all collisions between reactive molecules result in a reaction?
They may collide to hard
They do not all have enough energ
They may not all have the same bonds
__________ energy is the amount of energy needed for particles to react
All chemical reactions happen at the same speed.
True
False
Reaction rates can be changed
True
False
Reaction rates can be controlled by:
Concentration
Temperature
Pressure
None of the above
Reaction rates can change over time as the reaction proceeds.
True
False
The rate of a reaction can be measured by:
The smell of smoke
The rate of formation of the product
The temperature of a reactant
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