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WorksheetsMole conversions practice!
Total questions: 31
Worksheet time: 2hrs 45mins
Zinc reacts with oxygen. What product(s) are formed?
Zn
ZnO2
ZnO
O2
What are the coefficients for the balanced equation?
__Zn + __O2 --> __ZnO
1: 1: 1
1: 2: 1
2: 1: 1
2: 1: 2
What type of reaction was this?
2Zn + 1O2 --> 2ZnO
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What is the molar mass of Zn?
91.22 g/mol
65.38 g/mol
16.00 g/mol
130.76 g/mol
What is the molar mass of O2?
16.00 g/mol
32.00 g/mol
8 g/mol
2 g/mol
What is the molar mass of ZnO?
65.38 g/mol
16.00 g/mol
97.38 g/mol
81.38 g/mol
Given: 2Zn + 1O2 --> 2ZnO
How many grams of oxygen is in 6.02 x 1023 molecules?
16.00 g
1.93 x 1025 g
32.00 g
2.27 x 1046 g
Potassium metal reacts with silver chloride. What product(s) are formed?
KCl
Ag
K
AgCl
What coefficients are needed to balance this reaction?
___ K + ___ AgCl --> ___ Ag + ___ KCl
2: 2: 2: 2
2: 1: 2: 1
1: 2: 1: 2
1: 1: 1: 1
What type of reaction was this?
K + AgCl --> Ag + KCl
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What is the molar mass of K?
107.87 g/mol
39.10 g/mol
74.55 g/mol
143.32 g/mol
What is the molar mass of AgCl?
107.87 g/mol
39.10 g/mol
74.55 g/mol
143.32 g/mol
What is the molar mass of KCl?
107.87 g/mol
39.10 g/mol
74.55 g/mol
143.32 g/mol
What is the molar mass of Ag?
107.87 g/mol
39.10 g/mol
74.55 g/mol
143.32 g/mol
Given: K + AgCl --> KCl + Ag
How many molecules of silver is in 3.45 grams?
1.93 x 10 22 molecules
6.18 x 10-22 molecules
1.88 x 1025 molecules
2.24 x 1026 molecules
Propane (C3H8) combusts. What products are produced?
CO2
C3H8
O2
H2O
What coefficients balance this reaction?
___C3H8 + ___O2 --> ___H2O + ___CO2
2: 10: 8: 6
1: 3: 4: 3
1: 5: 4: 3
1: 1: 1: 1
What type of reaction was this?
1C3H8 + 5O2 --> 4H2O + 3CO2
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What is the molar mass of C3H8?
32.00 g/mol
18.02 g/mol
44.01 g/mol
44.11 g/mol
What is the molar mass of O2?
32.00 g/mol
18.02 g/mol
44.01 g/mol
44.11 g/mol
What is the molar mass of CO2?
32.00 g/mol
18.02 g/mol
44.01 g/mol
44.11 g/mol
What is the molar mass of H2O?
32.00 g/mol
18.02 g/mol
44.01 g/mol
44.11 g/mol
Given: 1C3H8 + 5O2 --> 3CO2 + 4H2O
How many moles of carbon dioxide is in 43 grams?
1892.43 moles
7.14 x 10-23 moles
0.98 moles
1.02 moles
Copper (II) chloride reacts with potassium hydroxide. What product(s) are formed?
CuCl2
KOH
Cu(OH)2
KCl
What coefficients balance this chemical reaction?
___CuCl2 + ___KOH → ___Cu(OH)2 + ___KCl
2: 1: 2: 1
2: 2: 2: 2
1: 1: 1: 1
1: 2: 1: 2
What type of reaction was this?
CuCl2 + 2KOH → Cu(OH)2 + 2KCl
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What is the molar mass of CuCl2?
56.11 g/mol
97.56 g/mol
134.45 g/mol
74.55 g/mol
What is the molar mass of KCl?
56.11 g/mol
97.56 g/mol
134.45 g/mol
74.55 g/mol
What is the molar mass of KOH?
56.11 g/mol
97.56 g/mol
134.45 g/mol
74.55 g/mol
What is the molar mass of Cu(OH)2?
56.11 g/mol
97.56 g/mol
134.45 g/mol
74.55 g/mol
Given: CuCl2 + 2KOH → Cu(OH)2 + 2KCl
How many grams of Copper (II) hydroxide is in 2.34 moles?
228.29 g
0.02 g
41.69 g
99.9 g
