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C8 Rates and Equilibrium Revision

Chemistry

7th Grade

NGSS covered

Used 30+ times

C8 Rates and Equilibrium Revision
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26 questions

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1.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

List four factors that affects the rate of a reaction

temperature

concentration

surface area

volume

catalysts

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A temperature increase causes the particles ......

to slow down

move faster

collide higher

in the right order

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

How does a catalyst work in speeding up a reaction?

By lowering the activation energy or reaction

by giving them more energy

by making them more available

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The ______________is required to break the bonds of the reactants.

Carbonic energy

Activation energy

Plutonic energy

Energi Gaib

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What makes an effective collision?

When molecules collide.
When molecules collide with the proper orientation.
When molecules collide with proper orientation and enough kinetic energy.
High Temperature.

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