Rates of reactions
Authored by Monika Kalamon
Chemistry
9th Grade
NGSS covered
Used 1K+ times
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25 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which factors affect the rate of a reaction?
temperature
concentration
surface area
the size of a reaction container
catalyst
Tags
NGSS.HS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A temperature increase causes the particles to ......
to slow down
move faster
collide higher
in the right order
Tags
NGSS.HS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does a higher concentration increase the rate of reaction?
it increases the amount of reactants
it lowers the activation energy
it increases the energy of particle collisions
it increases the frequency of particle collisions
Tags
NGSS.HS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does a higher temperature increase the rate of a reaction?
it increases both the frequency and energy of particle collisions
it only increases the frequency of particle collisions
it only increases the energy of particle collisions
it reduces the activation energy of the reaction
Tags
NGSS.HS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the rate of reaction?
Tags
NGSS.HS-PS1-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Breaking up a lump of potassium into smaller pieces increases the rate of reaction due to increased
concentration
surface area
temperature
reactants
Tags
NGSS.HS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A temperature increase causes the particles ......
to slow down
move faster
collide higher
in the right order
Tags
NGSS.HS-PS1-5
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