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Chemistry Unit Review

Authored by Mrs. Wachob

Chemistry

8th Grade

NGSS covered

Used 44+ times

Chemistry Unit Review
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All matter is made up of .....

Compounds

Atoms

Molecules

Air

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where are the most reactive nonmetals located on the periodic table?

the uppermost complete row of the table

the rows at the bottom of the table connecting two sections

the column at the far left side of the table

the second column from the right side of the table

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the concept of conservation of mass apply to chemical reactions?

The reactants and products have exactly the same atoms.

The reactants and products have exactly the same molecules.

The change in the amount of matter is equal to the change in energy.

The change in the amount of matter is only a small percentage of the total mass.

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which substance is composed of only one type of atom?

water

gold

salt

sugar

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When oxygen combines with hydrogen, which substance is formed?

water

vinegar

hydrochloric acid

hydrogen dioxide

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

NGSS.MS-PS1-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where are the most reactive metals located on the periodic table?

the uppermost complete row of the table

the rows at the bottom of the table connecting two section

the column at the far left side of the table

the second column from the right side of the table

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a balanced chemical equation satisfy the Law of Conservation of Mass?

During a chemical reaction, the total amount of matter stays the same.

During a chemical reaction, matter is destroyed.

During a chemical reaction, one or more new substances are formed.

During a chemical reaction, the total number of atoms increases.

Tags

NGSS.MS-PS1-5

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