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Compound or Element

Authored by Charles Martinez

Chemistry

6th - 8th Grade

NGSS covered

Compound or Element
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27 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How many different elements are in this chemical formula: C2H2ClK3

6
8
2
4

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following atomic symbols is written correctly?

ee
hE
C
CL

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is a pure substance?

CO
C02
Co
H2O

Tags

NGSS.MS-PS1-4

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is a pure substance?

O2
Al2CO5
C6H12O6
SiO2

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following atomic symbols for bromine is written correctly?

bR
BR
Br
br

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following chemical formulas represents a compound? 

C3
O2
CH3CHO
H2

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Can be found on the periodic table

Element
Compound
MIxture

Tags

NGSS.HS-PS1-1

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