Chemical Equations and Reactions

Chemical Equations and Reactions

8th Grade

15 Qs

quiz-placeholder

Similar activities

Kaleb and Jamimi

Kaleb and Jamimi

8th Grade

10 Qs

bacteria-chapter 2 lesson 2

bacteria-chapter 2 lesson 2

7th - 8th Grade

10 Qs

Weather & Water: Investigations 1&2

Weather & Water: Investigations 1&2

6th - 8th Grade

10 Qs

Plate Tectonics & Layers Of the Earth!.

Plate Tectonics & Layers Of the Earth!.

7th - 9th Grade

10 Qs

cells

cells

6th - 9th Grade

10 Qs

Danger Psych revision

Danger Psych revision

12th Grade

20 Qs

Science Year 3

Science Year 3

8th Grade

10 Qs

QUIZZOPHILE

QUIZZOPHILE

University

10 Qs

Chemical Equations and Reactions

Chemical Equations and Reactions

Assessment

Quiz

Science

8th Grade

Practice Problem

Hard

NGSS
MS-PS1-5, MS-PS1-2, MS-PS1-1

Standards-aligned

Created by

Lisa Thompson

FREE Resource

AI

Enhance your content

Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of these is NOT a sign of a chemical change:

color change

unexpected temperature change

phase change

gas/bubbles/odor

Tags

NGSS.MS-PS1-2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is true regarding the law of conservation of mass?

It dictates that the number of molecules on each side of a chemical equation must be the same.

It dictates that the number of atoms of each element must be the same on both sides of a chemical equation.

It states that the mass of the reactants must remain constant in order for a chemical reaction to proceed.

It does not apply to chemical reactions.

Answer explanation

The number of molecules does not have to be the same because lots of molecules could be needed to make one new one. However, the number of each type of atom does need to be the same.

Tags

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following may indicate that a chemical reaction has occured?

release of energy as light

a color change

gas bubble formation

all of these

Tags

NGSS.MS-PS1-2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does CH4 represent in the balanced chemical equation: C + 2 H2 --> CH4

atom CH4

atoms CH4

molecule CH4

g CH4

Answer explanation

Balanced chemical equations can be interpreted in terms of molecules of a compound or moles of a compound.

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is NOT true regarding a properly written chemical equation?

It must be balanced.

It must contain proper chemical formulas.

It must show the formation of a precipitate or a gas.

It should represent known data.

Answer explanation

There are many signs that a chemical reaction has taken place. Formation of a precipitate or a gas is not required, but could be an indicator that a reaction has occurred.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In a chemical equation, the formula of a substance in water solution is followed by the symbol

(l)

(s)

(g)

(aq)

Answer explanation

aq = aqueous solution which means that the substance is dissolved in water

s = solid

l = liquid

g = gas

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

1, 1, 1, 1

1, 2, 2, 1

2, 1, 2, 1

2, 1, 1, 2

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Create a free account and access millions of resources

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

By signing up, you agree to our Terms of Service & Privacy Policy

Already have an account?