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8.6E Law of Conservation of Mass Practice
Authored by CATHERINE MASON
Science
6th - 8th Grade
NGSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 12 pts
What does the number 3 represent in 4NH3?
Subscript
Superscript
Coefficient
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 12 pts
What does the number 4 represent in 4NH3?
Subscript
Superscript
Coefficient
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 12 pts
How many Nitrogen (N) atoms are in 4NH3?
4
1
3
12
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 12 pts
How many Hydrogen (H) atoms are in 4NH3?
4
1
3
12
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 12 pts
In the equation shown, what are the reactant(s)?
N2 + H2
NH3
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 12 pts
In the equation shown, what are the product(s)?
N2 + H2
NH3
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-1
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
40 grams of calcium reacts with 71 grams of chlorine to produce _______ g of calcium chloride.
31
101
100
111
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
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