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WorksheetsChemistry Quiz 1/31/2020
Total questions: 10
Worksheet time: 40mins
Si(OH)4+NaBr--> SiBr4+NaOH
_CF4 + _Br2 -- _CBr4 + _F2
What are the coefficients used to balance the equation below?
__Ag2O →__ Ag +___O2
2,4,1
1,1,1
2,1,2
2,2,2
Determine the number of moles in 5.2 x 1022 atoms of gold.
0.083 mole
0.52 mole
8.63 x 1044 moles
3.1 x 1046 moles
How many water molecules are in 5.2 moles of water?
6.0 x 1023 molecules
5.20 molecules
3.13 x 1024 molecules
8.61 x 10-24 molecules
What is the molar mass of Ca(NO3)2?
148.096 g
164.086 g
102.055 g
70.084 g
How many moles are in 74 g of KCl
0.99 mole
0.014 mole
11 moles
0.14 mole
Calculate the molar mass of Ba(C2H3O2)2
255.3 g/mol
237.3 g/mol
228.3 g/mol
196.3 g/mol
2NO2 --> N2 + 2O2
Synthesis
Decomposition
Single replacement
Combustion
1 Li3N + 3 NH4NO3 ----> 3 LiNO3 + 1 (NH4)3N
Synthesis (or combination)
Decomposition
Single replacement
Double replacement
