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WorksheetsBalancing chemical equations - Physical Science
Total questions: 9
Worksheet time: 17mins
What is the Law of Conservation of Mass?
It states that matter cannot be created or destroyed.
It states that energy cannot be created or destroyed.
It states that matter can be created or destroyed.
It states that sound can be created or destroyed.
Example: H2
Balanced this equation:
Sb2S3 + O2 ---> Sb + SO2
It is balanced.
Sb2S3 + O2 ---> 2Sb + SO2
Sb2S3 + 3O2 ---> 2Sb + 3SO2
3Sb2S3 + 3O2 ---> 2Sb + SO2
Determine the coefficients to make the following equation balanced?
__N2 + __O2--> __NO
1, 1, 1
1, 1, 2
2, 2, 2
1, 2, 2
Determine the coefficients to balance the equation.
__Al +__HCl --> __H2 +__AlCl3
2,6,3,2
it's already balanced
4,12,3,4
2,1,4,5
Why is it necessary to balance chemical equations?
Balance the following chemical equation:
MgO --> Mg + O2
Balance the following chemical equation:
H2O2 --> H2O + O2
