Compounds and Chemical Reactions

Compounds and Chemical Reactions

8th Grade

15 Qs

quiz-placeholder

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Compounds and Chemical Reactions

Compounds and Chemical Reactions

Assessment

Quiz

Science

8th Grade

Practice Problem

Hard

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

Standards-aligned

Created by

Lisa Thompson

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A molecule with atoms from two or more different elements.

compound

chemical change

formula

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which two elements make up water?

hydrogen and oxygen

oxygen and nitrogen

hydrogen and chlorine

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When chlorine and sodium combine, what compound is formed?

salt

sugar

sand

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The small number in a chemical formula that tell us how many atoms of that element are in a molecule is called a

subatomic number

subscript

submarine

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The formula for glucose is C6H12O6. How many elements does glucose contain?

1

3

24

432

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The kind of chemical reaction that occurs when molecules combine to form a new substance.

decomposition reaction

single replacement

synthesis reaction

Tags

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The kind of chemical reaction that breaks down a complex compound into two or more simpler compounds.

double replacement

decomposition reaction

synthesis reaction

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