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WorksheetsPhy Sci, Friday Bell Ringer, 2.1.19
Total questions: 10
Worksheet time: 38mins
Is the following equation balanced or unbalanced?
Fe + S --> FeS
balanced
unbalanced
CO2+ H2O --> H2CO3 Name the type of reactions.
Decomposition
Single Replacement
Synthesis
Combustion
Double Replacement
Why is the following chemical equation not balanced?
H2 + O2 --> H2O
each side of the equation has a different number of oxygen atoms
each side of the equation has a different number of hydrogen atoms
each side has the same mass
Balance this reaction:
____ Na3PO4 + ____ KOH ---> ____ NaOH + ____ K3PO4
1,3,3,1
1,3,2,1
2,3,3,1
1,1,3,1
Balancing this reaction:
____ CH4 + ____ O2 ---> ___ CO2 + ____ H2O
2,1,3,1
1,2,1,2
1,2,2,1
2,1,1,2
Balance this reaction:
____ NaF + ____ Br2 ---> ___ NaBr + ____ F2
3,1,2,1
1,2,3,4
2,1,2,1
1,2,1,2
Balance this reaction:
____ GaF3 + ____ Cs ---> ____ CsF + ____ Ga
1,1,3,1
1,2,3,1
2,3,3,1
1,3,3,1
What are the coefficient used to balance the equation below?
__Ag2O →__ Ag +___O2
2,4,1
1,1,1
2,1,2
2,2,2
The following is what type of reaction:
PbCl2 + AgNO3 → Pb(NO3)2 + AgCl
Synthesis
Decomposition
Single Replacement
Double Replacement
The following is what type of reaction:
NH3 + HCl → NH4Cl
Synthesis
Decomposition
Single Replacement
Double Replacement
