Practice Quiz Answers

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Name ____________________________
Date: _________ Class period ______
Practice Test: Naming and Formula Writing
Good luck!!  ANSWERS
100
Part I: Matching (2 points each) Please match the term with the correct definition. There
will be extra choices. And some may be used more than once.
A.
B.
C.
D.
Ionic
Monatomic
Neutral
Molecule
E.
F.
G.
H.
Metals
Cations
Anions
Nonmetals
I.
J.
K.
L.
Covalently
Metallic
Polyatomic
Empirical
M.
N.
O.
P.
Metalloids
Formula unit
Molecular
Ionically
1. G. Nonmetals will gain electrons to become ___.
2. O. The chemical formula that describes a single molecule
3. O. This kind of compound is made from two nonmetals
4. B. Ions that are made up of one atom are called ___.
5. L. The chemical formula that is arranged in the smallest whole number ratio
6. I. The atoms within polyatomic ions are bonded ___ with each other.
7. K. Multiple atoms that are bonded together with an overall positive or negative charge
8. I. Prefixes are used to name ___ bonded atoms
9. N. The smallest repeating pattern in a crystal
10. A. This kind of compound is made from a metal and a nonmetal
Part II: Multiple Choice (2 points each) Please circle the most correct answer. Write your
answer on the given lines.
1. B Which of
a.
b.
c.
the following ions is written correctly?
Chlorine ion
d. Calcide ion
Potassium ion
e. Sulfur ion
Oxygen ion
f. None of these
2. E In the compound iron (III) chloride, what is the charge on the iron ion?
a. +4
d. -2
b. -4
e. +3
c. +2
f. -3
3. C When naming an ion of a transition metal that as more than one common ionic
charge, the numerical value of the charge is indicated by a:
a. Prefix
d. Superscript after the name
b. Suffix
e. None of these
c. Roman numeral following
the name
4. D The sulfate ion is written in which of the following ways?
a. S-2
d. SO4-2
-1
b. HSO3
e. None of these
c. SO3-2
5. A In the compound Pt(C2H3O2)2, what is the charge on the platinum?
a. +2
b. -2
c. +3
d. -3
e. +4
f. -4
SCROLL DOWN……………….
Part III: Application
1. (2 points each) Write the formula for the following molecular compounds.
a. Sulfur hexabromide
SBr6
b. Oxygen pentafluoride
OF5
c. Trinitrogen octachloride
N3Cl8
d. Tribromine decaoxide
Br3O10
2. (2 points each) Name the following molecular compounds.
a. Se8O7
octaselenium heptaoxide
b. Si2Cl9
disilicon nonachloride
c. NF
nitrogen monofluoride
3. (2 points each) Write the chemical formulas for the following ionic compounds.
a. Calcium cyanate
Ca(CNO)2
b. Cesium arsenate
Cs3(AsO4)
c. Chromium (III) oxalate
Cr2(C2O4)3
d. Scandium perchlorate
Sc(ClO4)3
4. (2-3 points each) Name the following ionic compounds.
a. ZnI2
zinc iodide
b. Sn(SO3)2
tin (IV) sulfite
c. Ca(C2O4)
calcium oxalate
d. Hg(ClO4)2
mercury (II) perchlorate
e. (NH4)2(CO3) ammonium carbonate
f. Cr2(CO3)3
chromium (III) carbonate
g. Zn(ClO2)2
zinc chlorite
h. CuF2
copper (II) fluoride
i. Co3(PO4)2
cobalt (II) phosphate
5. (2 points each) Name the following chemical formulas. WARNING: Ionic,
covalent, and acid compounds are mixed.
a. N2O4
dinitrogen tetraoxide
b. GaF3
gallium fuloride
c. H2(S2O3)
thiosulfuric acid
d. PF5
phosphorus pentafluoride
e. K3(PO3)
potassium phosphite
f. CCl4
carbon tetrachloride
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