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Chemical Formulas: Counting Atoms and Molecules

Authored by Eric Marin

Science

8th Grade

NGSS covered

Used 11+ times

Chemical Formulas: Counting Atoms and Molecules
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26 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these items is made up of one or more molecules?

Gold (Au)

Hydrogen (H)

Salt (NaCl)

Neon (Ne)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elements are made of 

many types of atoms 
the periodic table
one type of atom 
molecules 

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All matter is made of 

energy 
atoms 
electrons 
compounds 

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

How many hydrogen atoms are there in a water molecule? 

0
1
2
3

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the total number of atoms in an ammonia (NH3) molecule?

1
2
3
4

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Carbon dioxide (CO2) contains how many atoms of oxygen?

0
1
2
3

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many Hydrogen are in 4H2O?

6
8
2
4

Tags

NGSS.MS-PS1-1

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