Counting Atoms and Molecules
Authored by Lisa Thompson
Science
8th Grade
NGSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1
2
3
4
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
4
3
2
6
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Molecules that are made of more than one type of atom are called?
Molecules
Elements
Mixtures
Compounds
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The blue numbers in the image below represent ________
I don't know, and don't want to try
coefficients
subscripts
none of the answers are correct
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many atoms of Hydrogen are in H2O
1
2
3
more than 3
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Calculate the number of Oxygen atoms in Al(OH)3
1
2
3
4
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many Magnesium atoms are in 10MgCl2?
10
5
20
Tags
NGSS.MS-PS1-1
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