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WorksheetsSpeed of a reaction
Total questions: 18
Worksheet time: 19mins
Increase in temperature causes the particles to
slow down
move faster
stay apart from each other
move in the correct order
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 reactant particles
it increases the frequency of collision
Catalyst helps to
increase the amount of product obtained
to lower the activation energy
provide an alternative reaction route
decrease the frequency of collision
Increasing pressure causes the reacting particles
to bond together
to repel from each other
gain more kinetic energy
to move closer together
Why does breaking up a solid reactant increase the rate of reaction?
it creates more solid
it creates more energy
it increases the total surface area
it increases the concentration
The ____________ states that atoms, ions, or molecules must collide in order to react.
transition state
activation energy
rate law
collision theory
The minimum amount of energy needed for colliding particles to react is called
Chemical Energy
Kinetic Energy
Activation Energy
Potential Energy
How could we make this reaction happen more quickly?
Decrease the concentration of the acid
crush the chalk to increase the surface area
Put the test tube in an ice bath
The major theory of reaction rate is called
Collision theory
Crash theory
Newton's laws
Thermodynamics
If the reactant particles collide with less energy than the activation energy, the particles will be rebound, and no reaction will occur.
True
False
Na2S2O3(aq) + 2HCl(aq) → 2S(s) + SO2(g) + 2NaCl(aq) + H2O(l)
Which list below contains only changes that will decrease the rate of this reaction?
