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WorksheetsRates of Reaction
Total questions: 23
Worksheet time: 21mins
Which factors affect the rate of a reaction?
temperature
concentration
surface area
pressure
catalyst
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
Grinding a effervescent tablet into powder increases the rate of reaction due to increased
concentration
surface area
temperature
reactants
Increasing the temperature gives particles more __________.
Time
Energy
Space
Frequency
As the frequency of ______________ increases, the rate of reaction increases.
Time
Reactions
Collisions
Reactants
Adding a catalyst ___________ the activation energy.
Raises
Lowers
Doesn't affect
Inreases
The minimum amount of energy needed for colliding particles to react is called
Chemical Energy
Kinetic Energy
Activation Energy
Potential Energy
Substance that changes the rate of a chemical reaction without being consumed in the reaction
bonding
catalyst
chemical reaction
activation energy
Which graph shows the effect of increasing temperature on the rate of reaction of calcium carbonate with dilute hydrochloric acid?
P, Q, R and S are pieces of apparatus.
Which row describes the correct apparatus for the measurement made?
A
B
C
D
Icing sugar has a greater ______ _____ than a solid cube of
sugar.
Surface Area
Catalyst
Temperature
hydrogen peroxide → water + oxygen
The diagrams show the effect of adding blood to the solution. What could be the reason for the observed change?
Which two diagrams show suitable methods for investigating the speed of the reaction?
Which graph shows the correct results?
