7.4 Collision Theory

Quiz
•
Chemistry
•
9th - 12th Grade
•
Easy
Shalini Ulaganathan
Used 31+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What describes a reaction?
Products react and become reactants.
Reactants react and become products.
Reactants and products react and become new reactants.
Reactants and products react and become new products.
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Collision theory states that
particles collide at random and react
collisions between particles often result in a reaction
collision between molecules are sometimes needed before a reaction occurs
reacting particles must collide with enough energy in order to reac
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What criteria must be met for reactant collisions to result in a successful product?
The reactants must collide with each other only
The reactants must collide with enough energy and be in the right positions
The reactants must have enough energy to form the activated complex
The reactants must collide with enough energy only
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Reactions in which the products have more energy than the reactants are_______ reactions.
Endothermic
Exothermic
Redox reaction
Elimination
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Increase in temperature of the reactants can do one of the following
Slow collision frequency
Allow less effective collision between the particles
Neutralise the reaction
Increase collision between the particles thus increasing the rate.
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Why does a catalyst increase the rate of reaction?
it produces extra energy for the reactants
it increases the speed of the reactant particles
it increases the frequency of particle collisions
it reduces the activation energy of the reaction
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Why don't all collisions between particles cause a reaction?
The particles also need to collide with a catalyst
Not all the particles collide with enough energy
Not all the particles collide at a high enough temperature
The particles need to collide with each other twice
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