WorksheetsBalancing Equation
Total questions: 20
Worksheet time: 17mins
Balance this equation:
MgCl2 --> Mg+ Cl2
It's already balanced.
4MgCl2 --> Mg4+ 4Cl2
4MgCl2 --> Mg4+ 5Cl2
2Li + Cl2 -> LiCl
In chemical reactions, what does the principle of conservation of mass mean?
Atoms are not created or destroyed, just rearranged.
The total mass of the reactants is greater than the total mass of the products.
The total mass of the reactants is less than the total mass of the products.
Products are the same as the reactants.
How many Hydrogen (H) atoms are in NH3O5
3
4
5
1
H2 + O2 -> H2O
Name the part in red:
H2 + O2 -> H2O
Coefficient
Products
Reactants
Subscript
_ H2 + O2 -> 2 H2O
Al + O2 --> Al2O3
N2 +3 H2 --> 2NH3
What are the coefficient used to balance the equation below?
__CH4 + ___O2 → __ CO2 + __H2O
2,4,1,1
1,1,1,2
1,2,1,2
2,2,2,1
__ Al + __ HCl → __ H2 + __ AlCl3
Is this balanced?
Al + O2 → 2Al2O3
Yes
No
What are the coefficient used to balance the equation below?
__CaCO3 + ___HCl → __CaCl2 + __ CO2 + __H2O
2,1,2,1,1
2,2,2,1,1
1,2,1,2,1
1,2,1,1,1
What are the coefficient used to balance the equation below?
__C + __MnO2 → __ CO2 + __Mn
Already Balanced (Nothing needs to be written on the line)
1,1,1,1
2,2,2,2
1,2,1,2
