
Balancing Chemical Equations
Authored by Susan Duderstadt
Chemistry
9th - 12th Grade
NGSS covered
Used 2+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which of the coefficients could be used to balance this equation?
__Ag2O →__ Ag +___O2
2,4,1
1,1,1
2,1,2
2,2,2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many HCl molecules do you need to balance this equation?
Mg + __HCl ---> MgCl2 + H2
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Balance this equation:
H2 + Cl2 ---> HCl
It is balanced.
H2 + Cl2 ---> 2HCl
3H2 + Cl2 ---> 6HCl
H2 + 3Cl2 ---> 6HCl
Tags
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Balance this equation:
HgO ---> 2Hg + O2
It is balanced.
2HgO ---> 2Hg + O2
2HgO ---> Hg + O2
HgO ---> Hg + 2O2
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Balance the following equation:
___ Mg+ ___ O2→___ MgO
1, 1, 3
2, 1, 2
1, 2, 1
2, 2, 2
Tags
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What are the larger numbers that you CAN CHANGE in a chemical equation?
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Is this equation balanced?
Tags
NGSS.MS-PS1-5
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