Reaction Rates

Reaction Rates

9th - 12th Grade

15 Qs

quiz-placeholder

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Reaction Rates

Reaction Rates

Assessment

Quiz

Science

9th - 12th Grade

Practice Problem

Easy

NGSS
HS-PS1-5, HS-PS1-4

Standards-aligned

Created by

Felicia Jackson

Used 4+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Increase in temperature of the reactants can do one of the following

Slow collision frequency
Allow less effective collision between the particles
Cause particles to lose speed
Increase collision between the particles thus increasing the rate.

Tags

NGSS.HS-PS1-5

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A ______________ is a substance that increases the rate of a reaction without being used up during the reaction. 

catalyst
product
reactant
solute

Tags

NGSS.HS-PS1-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a catalyst do to speed up a reaction?

It reduces the surface area of the reactants

It increases the surface area of the reactants.

It reduces the required energy for a chemical reaction to occur and provides an alternative pathway.

It increases the required energy for a chemical reaction to occur

4.

MULTIPLE CHOICE QUESTION

1 min • 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

5.

MULTIPLE CHOICE QUESTION

1 min • 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 because there are more collision sites

Tags

NGSS.HS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the temperature is increased, then the rate is ........... and the time required for the reaction is  ............

Increases, decreases

Increases, increases

decreases, increases

decreases, decreases

Tags

NGSS.HS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A catalyst  ........... the rate of reaction by .......... the energy of activation.

Decrease, increasing

increase, increasing

Increases, decreasing

Tags

NGSS.HS-PS1-4

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