
Balancing Chemical Reactions
Authored by Kurtis Trout
8th - 9th Grade
Used 921+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
__Na + __Cl2 --> __NaCl
1,1,2
2,1,2
2,1,1
already balanced
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
__NaClO3 --> __NaCl + __O2
2,2,2
2,2,3
3,2,2
1,2,3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Balancing this reaction: ____ CH4 + ____ O2 ---> ____ CO2 + ____ H2O
2,1,3,1
1,2,1,2
1,2,2,1
2,1,1,2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Balance this reaction: ____ NaF + ____ Br2 ---> ____ NaBr + ____ F2
3,1,2,1
1,2,3,4
2,1,2,1
1,2,1,2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Balance this reaction: ____ BaS + ____ PtF2 ---> ____ BaF2 + ____ PtS
1,1,1,1
1,2,1,1
1,1,1,2
2,1,1,1
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What do the coefficients need to be in the following equation in order to be balanced?
_Mg + _Cl2 → _MgCl2
1, 2,1
already balanced
2,1,1
1,1,2
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Balance this equation:
Al2O3 -> Al + O2
2Al2O3 -> 2Al + 3O2
2Al2O3 -> 4Al + 3O2
3Al2O3 -> 2Al + O2
2Al2O3 -> 3Al + 2O2
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