WorksheetsYear 10 A Chemistry Unit 2 Quiz
Total questions: 33
Worksheet time: 2hrs 4mins
Name
Class
Date
1.
Calculate the number of moles of Aluminum in a 2.04 mole sample of aluminum oxide, Al2O3.
a)
2.04 moles
b)
4.08 moles
c)
6.12 moles
d)
1.02 moles
2.
N2 + 3H2 --> 2NH3
How many moles of N2 is needed to react with 6 moles of H2?
How many moles of N2 is needed to react with 6 moles of H2?
a)
6.7
b)
2.0
c)
3.0
d)
15.0
3.
N2 + 3H2 --> 2NH3
What is the total number of moles of NH3 produced when 10 moles of H2 reacts completely with N2?
What is the total number of moles of NH3 produced when 10 moles of H2 reacts completely with N2?
a)
6.7
b)
2.0
c)
3.0
d)
15.0
4.
Given the balanced equation:
Fe + CuSO4 --> FeSO4 + Cu
What total mass of CuSO4 is necessary to produce 1.0 mole of Cu?
Fe + CuSO4 --> FeSO4 + Cu
What total mass of CuSO4 is necessary to produce 1.0 mole of Cu?
a)
63.5 g
b)
112 g
c)
159.5 g
d)
192 g
5.
4Al + 3O2 -->2Al2O3
What is the total number of moles of aluminum oxide that can be formed when 54 grams of aluminum reacts completely with oxygen?
What is the total number of moles of aluminum oxide that can be formed when 54 grams of aluminum reacts completely with oxygen?
a)
1 mole
b)
2 moles
c)
3 moles
d)
4 moles
6.
Balance this reaction: ____ NaF + ____ Br2 ---> ____ NaBr + ____ F2
a)
3,1,2,1
b)
1,2,3,4
c)
2,1,2,1
d)
1,2,1,2
7.
Balance this reaction: ____ Na3PO4 + ____ KOH ---> ____ NaOH + ____ K3PO4
a)
1,3,3,1
b)
1,3,2,1
c)
2,3,3,1
d)
1,1,3,1
8.
Balance this reaction: ____ NH3 + ____ H2SO4 ---> ____ (NH4)2SO4
a)
2,1,1
b)
2,1,2
c)
1,2,2
d)
2,2,1
9.
Decomposition occurs when...
a)
Two formulas combine.
b)
A formula breaks apart.
c)
An atom is replaced during a reaction.
10.
____ AgNO3 + ____ Cu ---> ____ Cu(NO3)2 + ____ Ag
a)
4,2,1,2
b)
1,1,1,1
c)
1,2,1,2
d)
2,1,1,2
11.
How many moles are in 88 g of propane, C3H8.
a)
2.0
b)
16.0
c)
0.051
d)
3,872
12.
What is the mass of one mole of aluminum chloride (remember to determine the correct formula first)?
a)
62.435g
b)
116.399g
c)
133.341g
d)
97.888g
13.
Calculate the number of gold atoms in a 4 mole sample of gold.
a)
2.41x1024
b)
3.01x1023
c)
4.82x1024
d)
6.02x1023
14.
Calculate the mass of NaOH required to produce 45g of NaCl when mixed with HCl.
a)
30.79g
b)
15.39g
c)
61.58g
d)
45.60g
15.
Which of the following is incorrect
a)
Na2SO4
b)
CaCl
c)
Li2CO3
d)
NaCl
16.
Calculate the mass of precipitate formed in the reaction between 70g of silver nitrate and excess potassium chloride
a)
59.06g
b)
33.07g
c)
53.09g
d)
78.78g
17.
The formula mass of a compound is 48 grams. The mass of 2.0 mole of this compound is
a)
1.0 g
b)
48 g
c)
9.6 g
d)
96 g
18.
Considering the UNBALANCED reaction:
Fe2O3(s) + CO(g) --> Fe(m) + CO2(g)
How many moles of carbon dioxide are produced from 5.5 moles of carbon monoxide?
Fe2O3(s) + CO(g) --> Fe(m) + CO2(g)
How many moles of carbon dioxide are produced from 5.5 moles of carbon monoxide?
a)
5.5 moles
b)
2.75 moles
c)
11 moles
d)
7 moles
19.
Calculate the mass of oxygen present in a 55g sample of Aluminium oxide.
a)
29.28
b)
19.95
c)
11.36
d)
32.33
20.
What is the total mass in grams of 0.75 mole of SO2?
a)
16 g
b)
24 g
c)
32 g
d)
48 g
21.
6.02x1023 is known as
a)
the address to get "free shavacado"
b)
Avogadro's number.
c)
Avocado's number.
d)
the genetic make up of Guacamole.
22.
Interpret the following equation in terms of moles:
Li3N + 3NH4NO3 --> 3LiNO3 + (NH4)3N
Li3N + 3NH4NO3 --> 3LiNO3 + (NH4)3N
a)
lithium nitride reacts with ammonium nitrate
b)
3 moles of lithium nitrate and 3 moles of ammonium nitrate are produced
c)
3 moles of ammonium nitrate produces 1 mole ammonium nitride
d)
1 mole lithium nitride produces 3 moles ammonium nitrate
23.
For the following reaction, how many moles of silver is produced, if 10 moles of silver nitrate is completely reacted during the reaction?
2AgNO3 + Cu --> Cu(NO3)2 + 2Ag
2AgNO3 + Cu --> Cu(NO3)2 + 2Ag
a)
2 moles
b)
2.5 moles
c)
5 moles
d)
10 moles
24.
For the following reaction, how many moles of silver is produced, if 10 moles of silver nitrate is completely reacted during the reaction?
2AgNO3 + Cu --> Cu(NO3)2 + 2Ag
2AgNO3 + Cu --> Cu(NO3)2 + 2Ag
a)
2 moles
b)
2.5 moles
c)
5 moles
d)
10 moles
25.
For the following reaction, how many moles of copper is need to produce 8 moles of silver?
2AgNO3 + Cu --> Cu(NO3)2 + 2Ag
2AgNO3 + Cu --> Cu(NO3)2 + 2Ag
a)
1 moles
b)
2 moles
c)
4 moles
d)
8 moles
26.
N2 + 3H2 −-> 2NH3
How many moles of ammonium are produced when 3 moles of nitrogen react with hydrogen?
How many moles of ammonium are produced when 3 moles of nitrogen react with hydrogen?
a)
6 moles Ammonium
b)
1.5 moles ammonium
c)
9 moles ammonium
d)
9 moles hydrogen
27.
Considering the UNBALANCED reaction:
Fe2O3(s) + CO(g) --> Fe(m) + CO2(g)
If 32 moles of iron metal was produced during the reaction, how many moles of carbon monoxide were consumed?
Fe2O3(s) + CO(g) --> Fe(m) + CO2(g)
If 32 moles of iron metal was produced during the reaction, how many moles of carbon monoxide were consumed?
a)
21 moles
b)
21.3 moles
c)
48 moles
d)
64 moles
28.
How many moles of KOH are required to make 3.0 moles of K2SO4?
H2SO4 + 2KOH -----> 2H2O + K2SO4
H2SO4 + 2KOH -----> 2H2O + K2SO4
a)
3 mol KOH
b)
6 mol KOH
c)
18 mol KOH
d)
24 mol KOH
29.
Determine the number of atoms in
2.50 moles of zinc.
2.50 moles of zinc.
a)
1.51 x 1024 atoms
b)
4.15 x 10-24 atoms
c)
2.71 x 10-22 atoms
d)
163 atoms
30.
4NH3 + 5O2-->4NO + 6H2O
What is the total number of moles of NO produced when 1 mole of O2 is completely consumed?
What is the total number of moles of NO produced when 1 mole of O2 is completely consumed?
a)
1
b)
1.2
c)
0.8
d)
4
31.
Determine the molar mass for CCl4
a)
158.8 g/mol
b)
47.54 g/mol
c)
189.35 g/mol
d)
82.9 g/mol
32.
What is the molar mass of B2(CO3)3?
a)
81.632 g/mol
b)
94.842 g/mol
c)
38.822 g/mol
d)
201.648 g/mol
33.
How many grams are in 4.5 moles of sodium fluoride, NaF?
a)
0.1 g
b)
9.3 g
c)
100 g
d)
189 g
100 %
