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Worksheetsnaming to mole test
Total questions: 20
Worksheet time: 37mins
Name
Class
Date
1.
The chemical formula of magnesium hydroxide is
a)
MgOH₂
b)
Mg(OH)₂
c)
Mg(OH)
d)
MgH₂
2.
The chemical formula of sodium sulfate is
a)
S₂SO₄
b)
NaSO₂
c)
NaSO₄
d)
Na₂SO₄
3.
How many grams are in 6.0 x 1023 molecules of CO?
a)
28 grams
b)
56 grams
c)
6.02 grams
d)
1.2 grams
4.
What are the units for molar mass?
a)
grams
b)
amu
c)
grams/mole
d)
liters
5.
What is the mass of one mole of Aul2?
a)
108g
b)
324g
c)
232.5g
d)
451g
6.
36.0 g of Be contains how many moles?
a)
0.25 mol
b)
4.0 mol
c)
45 mol
d)
320 mol
7.
Determine the amount of moles in 1.50 x 1023 atoms of fluorine.
a)
9.03 x 1046 moles
b)
0.249 moles
c)
4.73 moles
d)
0.0131 moles
8.
An ionic bond contains _____________.
a)
Two metals
b)
A metal and nonmetal
c)
Two nonmetals
9.
Electrons are ______ in covalent bonds.
a)
Shared
b)
Transferred
c)
Given up
d)
Lost
10.
What usually forms the positive ion?
a)
metal
b)
nonmetal
11.
What is NO
a)
Nitrogen Monoxide
b)
nitrogen dioxide
c)
nitrogen tetroxide
d)
nitrogen dioxide
12.
The chemical formula of magnesium phosphide is
a)
MgP
b)
Mg₂P₃
c)
Mg₃P₂
d)
Mg₃(PO₄)₂
13.
Find the molar mass of KCl
a)
36 g/mol
b)
78 g/mol
c)
74 g/mol
d)
178 g/mol
14.
Which list of number of atoms in Mg(NO3)2 is right?
a)
Mg : 1--NO : 6
b)
Mg : 1-- N : 6--O: 6
c)
Mg : 1-- N: 1-- O: 5
d)
Mg : 1-- N: 2-- O: 6
15.
What is the molar mass of (NH4)2O?
a)
34 g/mol
b)
33 g/mol
c)
49 g/mol
d)
52 g/mol
16.
write the formula for the following compound:
Methane
Methane
a)
CH4
b)
MeTi
c)
MnTi
d)
CH2
17.
write the formula for the following compound:
sodium hydroxide
sodium hydroxide
a)
NaOH
b)
NaO
c)
Na2O
d)
NaH2O
18.
write the formula of the compound formed between elements below:
Be F
Be F
a)
BeF2
b)
Be2F
c)
BeF
d)
F2Be
19.
write the formula for the following compound:
potassium chlorite
potassium chlorite
a)
KClO2
b)
KCl
c)
KClO3
d)
KClO4
20.
How many electrons are in the outer shell of Sodium (Na)?
a)
3
b)
1
c)
2
d)
4
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