7.4 Collision Theory

7.4 Collision Theory

9th - 12th Grade

15 Qs

quiz-placeholder

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7.4 Collision Theory

7.4 Collision Theory

Assessment

Quiz

Chemistry

9th - 12th Grade

Easy

Created by

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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