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Rate of Reactions

Authored by Stephanie Blodgett

Chemistry

11th - 12th Grade

NGSS covered

Used 1+ times

Rate of Reactions
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17 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

List the factors that affects the rate of a reaction(choose all that apply).

temperature

concentration

particle size

inhibitors

catalysts

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a catalyst work in speeding up a reaction?

By lowering the activation energy of a reaction

by giving them more energy

by making them more available

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is slower and why?

Red, because the activation energy is larger
Blue, because the activation energy is lower
both reaction progress at the same rate

Tags

NGSS.HS-PS1-4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an exothermic reaction, heat is ...

taken in
given out

Tags

NGSS.HS-PS1-4

5.

MULTIPLE CHOICE QUESTION

30 sec • 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

Tags

NGSS.HS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 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

Tags

NGSS.HS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 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.

Tags

NGSS.HS-PS1-5

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