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WorksheetsRates of Reactions
Total questions: 14
Worksheet time: 7mins
A substance that slows down or stops a chemical reaction is called a(n)______________.
concentrate
catalyst
inhibitor
product
The equation is an example of which type of chemical reaction? NaCl + AgF -->NaF + AgCl
synthesis
decomposition
single replacement
double replacement
A chemical reaction in which energy is absorbed is ______________.
an endothermic reaction
an exothermic reaction
a single replacement reaction
a double replacement reaction
Which factors increase the rate of a reaction?
increasing temperature
increasing concentration
increasing surface area
all of these
Which of the following increase the reaction rate?
less surface area
lower temperature
increased concentration
How can you increase the rate of a reaction?
Decrease the pressure
Decrease the concentration
Increase the concentration
Icing sugar has a greater ______ _____ than a solid cube of
sugar.
Surface Area
Catalyst
Temperature
Which of the following is not a way to speed up a chemical reaction?
increasing temperature
adding a catalyst
increasing particle size
increasing concentration
Which of the following colours represent the solution with the largest particle size?
Red
Blue
Both
None
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
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
Increasing the temperature gives particles more __________.
Time
Energy
Space
Frequency
Adding a catalyst ___________ the activation energy.
Raises
Lowers
Doesn't affect
Inreases
