Rate of Reactions
Authored by Lisa Thompson
Science
9th Grade
NGSS covered
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What happens to the rate of a reaction when the temperature increases?
The reaction rate slows down because the molecules are moving faster.
The reaction rate slows down because the molecules are moving slower.
The reaction rate goes faster because the molecules are moving faster.
The reaction rate goes faster because the molecules are moving slower.
Tags
NGSS.HS-PS1-5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which factors increase the rate of a reaction.
increasing temperature
increasing concentration
increasing surface area
all of these
Tags
NGSS.HS-PS1-5
NGSS.HS-PS1-6
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Which factors affect the rate of a reaction?
SELECT ALL THAT APPLY.
temperature
concentration
surface area
pressure
catalyst
Tags
NGSS.HS-PS1-5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a chemical reaction, if the reactants are heated, the reaction usually happens
Faster
Slower
At the same rate
In a smaller volume
Tags
NGSS.HS-PS1-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the concentration of a reactant is increased, what is the effect on the rate of reaction?
The rate of reaction decreases.
The rate of reaction increases.
The rate of reaction remains unchanged.
The reaction stops.
Tags
NGSS.HS-PS1-5
NGSS.HS-PS1-6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
which factor that affect reaction rate is represented?
Temperature
Catalyst
Surface Area
Concentration
Tags
NGSS.HS-PS1-5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What effect does increasing the concentration of reactants have on the rate of reaction?
It decreases the rate of reaction.
It has no effect on the rate of reaction.
It increases the rate of reaction.
It stops the reaction.
Tags
NGSS.HS-PS1-5
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