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WorksheetsChemistry: Writing and Naming compounds
Total questions: 35
Worksheet time: 43mins
Name
Class
Date
1.
Ionic compounds are written with
a)
cation (+ ion) first then anion (- ion)
b)
anion (- ion) first then cation (+ ion)
c)
either way is fine
d)
polyatomic ions first
2.
Ba+2, Br-1
a)
BrBa
b)
Br2Ba2
c)
BaBr2
d)
Br2Ba
3.
Ca+2, O-2
a)
CaO
b)
OCa
c)
Ca-2O+2
d)
Ca2O2
4.
Ca+2P-3
a)
PCa
b)
P2Ca3
c)
CaP
d)
Ca3P2
5.
The correct chemical formula for magnesium phosphide is
a)
MgP
b)
Mg₂P₃
c)
Mg₃P₂
d)
Mg₃(PO₄)₂
6.
When adding a subscript to a polyatomic ion, you should...
a)
multiply any subscripts on the polyatomic ion by the subscript you are adding
b)
put parentheses around the polyatomic ion before adding a subscript
c)
write the new subscript next to any subscripts on the polyatomic ion
d)
put the polyatomic ion in square brackets before adding the subscript
7.
What is the correct name for P₃Cl₆?
a)
Potassium chloride
b)
Phosphorous chloride
c)
Triphosphorous hexachloride
d)
Tetraphosphorous heptachloride
8.
What is the correct name for MgI₂?
a)
Manganese IV iodide
b)
Manganese diiodide
c)
Magnesium iodide
d)
Magnesium diiodide
9.
The correct name of Mg₃N₂ is
a)
manganese nitride
b)
magnesium nitride
c)
magnesium (III) nitride
d)
trimagnesium dinitride
10.
What is the correct formula for dinitrogen tetroxide?
a)
N₃O₃
b)
(N₂)₂(O₄)₃
c)
N₂O₄
d)
N₄O₂
11.
What is the correct formula for phosphorous trichloride?
a)
P₃Cl
b)
PCl₃
c)
KCl₃
d)
K₃Cl
12.
What is the correct formula for aluminum phosphide?
a)
Al₃P₃
b)
AlP
c)
AlPO₄
d)
AlPO₃
13.
What is the correct formula for dichlorine monoxide?
a)
Co₃O
b)
ClO₂
c)
Cl₂O
d)
(Cl₂)₂O
14.
What is the correct name for SO₂?
a)
Sulfur oxide
b)
Sulfite
c)
Sulfur dioxide
d)
Sulfur II Oxide
15.
What is the correct formula for carbon dioxide?
a)
C2O2
b)
C20
c)
CO
d)
CO2
16.
What is the correct name for CCl4?
a)
carbon tetrachloride
b)
monocarbon tetrachloride
c)
tetracarbon monochloride
d)
carbon chloride
17.
The chemical formula for an ionic compound of aluminum and chlorine is
a)
AlCl.
b)
ClAl.
c)
AlCl3.
d)
Al3Cl.
18.
Which of the following is a covalent compound?
a)
CH4
b)
NaCl
c)
K3PO4
d)
Zn(OH)
19.
True or false: When naming ionic compounds, use prefixes to indicate subscripts
a)
True
b)
False
20.
Ionic compounds must have...
a)
a metal and a polyatomic ion
b)
a cation and an anion
c)
only nonmetals
d)
only metals
21.
Group 15 elements form what type of charge?
a)
-1
b)
-3
c)
+3
d)
15
22.
What is the formula for magnesium chloride?
a)
MgCl
b)
Mg2Cl
c)
MgCl2
d)
Mg(ClO3)2
23.
What is the formula for calcium carbonate?
a)
CaCO
b)
CaCO2
c)
CaCO3
d)
Ca3CO3
24.
Ionic Formula
Sodium fluoride
Sodium fluoride
a)
Na2F
b)
NaF2
c)
NaF
d)
SF
25.
Ionic Formula -
strontium iodide
strontium iodide
a)
SrI
b)
SrI2
c)
Sr2I
d)
StI2
26.
Sulfate
a)
SO42-
b)
SO32-
c)
SO4
d)
SO3
27.
Chemical formula of Hydroxide ion?
a)
O2-
b)
H+
c)
OH-
d)
OH2-
28.
Give the formula for oxygen dichloride
a)
OCl2
b)
O2Cl2
c)
OCl
d)
O2Cl
29.
Give the formula for phosphorus trifluoride
a)
P3F
b)
PF
c)
PF3
d)
P3F3
30.
What is the chemical formula for CP ?
a)
Carbon phosphide
b)
Monocarbon phosphide
c)
Carbon monophosphide
d)
none of the above
31.
What is the chemical formula for Fluorine trisulfide ?
a)
S3F
b)
FS3
c)
FS
d)
none of the above
32.
What is the chemical formula for Tetraphosphorous Pentachloride ?
a)
4P5Cl
b)
PCl
c)
P4Cl5
d)
none of the above
33.
An ionic compound of calcium and chlorine would be named
a)
calcium chlorine.
b)
calcium chlorite.
c)
calcium chloride.
d)
chlorine calcium.
34.
A covalent compound made of one sulfur and two oxygen atoms would be named
a)
sulfur dioxide.
b)
sulfur oxide.
c)
disulfur oxide.
d)
sulfide oxygen.
35.
The covalent compound N2O5 would be named
a)
nitrogen oxide.
b)
dinitrogen oxide.
c)
nitrogen pentoxide.
d)
dinitrogen pentoxide.
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