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WorksheetsBalancing and Types of Chemical Equations
Total questions: 20
Worksheet time: 33mins
Balance the following:
____ Fe + ____ Cl2 → ____ FeCl3
Which type of reaction is:
C7H16 + 10 O2 → 7 CO2 + 8 H2O
Which type of reaction is:
3 Pb + 2 H3PO4 → 3 H2 + Pb3(PO4)2
In the equation, 2Mg + O2 ---> 2MgO, which are the reactants?
Mg and O2
MgO
Mg and MgO
O and MgO
The blue numbers in the image represent
subscripts
coeffiecients
roman numerals
none of the answer options are correct
The red numbers in the image represent
subscripts
coeffiecients
roman numerals
none of the answer options are correct
When balancing a chemical equation, you can only change _________, you can never change _______!
coefficients, subscripts
subscripts, coefficients
formulas, subscripts
coefficients, formula units
CoCO3 → CoO + CO2
Al + O2 --> 2Al2O3
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.
Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
yes
no
2H2 + O2 --> 2H2O
H2 + O2 --> H2O
_Al +_HCl --> _H2 +_AlCl3
__P4 + __O2 --> __P2O3
