Chemistry Review (EL #4)

Chemistry Review (EL #4)

8th Grade

32 Qs

quiz-placeholder

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Chemistry Review (EL #4)

Chemistry Review (EL #4)

Assessment

Quiz

Chemistry

8th Grade

Practice Problem

Easy

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

Standards-aligned

Created by

Krissy Monagle

Used 36+ times

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32 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a compound?

Ne

Na

NaHCO₃

N

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is C₂H₄O₂ a compound or element?

Compound

Element

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is the correct balanced equation for the decomposition of Mercury(II) oxide?

HgO → Hg + 2O2

2HgO → Hg + O₂

HgO → 2HgO₂

2HgO → 2Hg + O₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the chemical formula for the molecule represented in the image?

HO

H2O

H2O2

HO2

Tags

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does a coefficient belong in a chemical equation (if needed)?

In the middle of a compound or formula as needed.

In the front of a formula or compound as needed.

It can be placed anywhere in a chemical equation.

It goes behind a chemical formula as needed.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Balance the equation: ( Na + O2 -> Na2O ) When balanced, how many total atoms are in the reactants?

7

9

6

3

Tags

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ammonia, ( NH3 ), is an example of a(n):

Mixture

Atom

Element

Compound

Tags

NGSS.MS-PS1-1

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