WorksheetsBalancing Equations
Total questions: 10
Worksheet time: 50mins
Choose the answer that balances this equation.
H2 + O2 --> H2O
2H2 + O2 --> 2H2O
2H2 + 2O2 --> H2O
H2 + 2 O2 --> 2H2O
balanced already
The Law of Conservation of Mass says:
Matter can be destroyed, but it can't be created.
Matter can be created with any density as long as the volume remains constant.
Matter cannot be created nor destroyed.
Matter can change phases and still be the same substance.
If I have 100 grams of reactants, how many grams of products should I have?
0g
100g
50g
75g
H3PO4 + KOH ------> K3PO4 + H2O
Is this equation balanced?
yes
no
impossible to determine
Which choice shows this equation balanced?
K + B2O3 -----> K2O + B
2K + B2O3 -----> K2O + 3B
K + 2B2O3 -----> 4K2O + B
6K + B2O3 -----> 3K2O + 2B
balanced as is.
The _______ are on the left side of the equation and the _______ are on the right.
products; reactants
reactants; solutions
solvents; products
reactants; products
HCL + NaOH ---> NaCl + H2O
Is this equation balanced?
yes
no
Cannot determine
Choose the answer that shows this equation balanced:
C + S8 ----->CS2
4C + S8 ----->4CS2
3C + S8 -----> 2CS2
C + 2S8 -----> 6CS2
8C + S8 -----> 4CS2
Choose the Answer that shows this equation balanced:
Na + O2 ----> Na2O2
Na + 3O2 ----> Na2O2
2Na + O2 ----> Na2O2
Na + 2O2 ----> Na2O2
3Na + 2O2 ----> Na2O2
Choose the answer that shows this equation Balanced
N2 + O2 ----> N2O5
3N2 + O2 ----> 3N2O5
5N2 + 2O2 ----> 5N2O5
2N2 + 5O2 ----> 2N2O5
Cannot be balanced
