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Rates of Reaction LT

Authored by Rick Cahoon

Chemistry

9th - 12th Grade

NGSS covered

Used 29+ times

Rates of Reaction LT
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

to slow down

move faster

collide higher

in the right order

Tags

NGSS.HS-PS1-5

2.

MULTIPLE CHOICE QUESTION

30 sec • 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

Tags

NGSS.HS-PS1-5

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

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

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the rate of reaction?

How fast a reaction is 
How big a reaction is
How loud a reaction is
How much gas a reaction produces

Tags

NGSS.HS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Grinding a seltzer tablet into powder increases the rate of reaction due to increased

concentration
surface area
temperature
reactants

Tags

NGSS.HS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As the frequency of ______________ increases, the rate of reaction increases.

Time

Reactions

Collisions

Reactants

Tags

NGSS.HS-PS1-5

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