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Naming Compounds And Writing Formulas
Test Description: Practical Questions of Chemical Nomenclature
Instructions: Answer all questions to get your test result.
1) What is the correct name for the compound Cu2SO3?
A
copper(I) sulfite
B
cuprous sulfate
C
dicopper sulfur trioxide
D
copper(II) sulfite
2) The number of atoms in one formula unit of the substance, CO(NH2)2, is
A
8
B
5
C
6
D
7
3) How many atoms are there in one formula unit of NiSO4 · 7H2O?
A
27
B
14
C
9
D
28
4) Which one of the following compounds is correctly described as a hydrate?
A
NaOH
B
CoCl2 · 6H2O
C
HC2H3O2
D
CaH2
5) Which one of the following is correctly classified as a hydrocarbon?
A
C6H12O6
B
NaHCl
C
C8H16
D
HC2H3O2
6) The common name for the compound, CH4, is
A
methane
B
carbon(IV) hydride
C
carbonic acid
D
carbon tetrahydride
7) What is the correct name for the compound IBr3?
A
iodine bromate
B
bromic iodide
C
monoiodine tribromite
D
iodine tribromide
8) What is the correct name for the compound HI(g)?
A
e. monohydrogen monoiodide
B
iodic acid
C
hydriodic acid
D
hydrogen iodide
9) What is the correct name for the compound S2Cl2?
A
sulfur(I) chloride
B
disulfur dichloride
C
disulfur chlorate
D
disulfur dichlorine
10) What is the correct name for the compound HCN(g)?
A
hydrocyanic acid
B
hydrogen carbonitride
C
hydrogen cyanide
D
hydrogen cyanate
11) When barium metal reacts with chlorine gas it forms an ionic compound, BaCl2. In the course of the reaction, each Ba atom
A
gains two protons
B
loses two protons
C
gains two electrons
D
loses two electrons
12) An alkaline earth element, which we will represent by the symbol X, unites with a halogen, which we will represent by the symbol Q. What would be the correct formula of the resulting compound?
A
X2Q
B
XQ
C
XQ2
D
XQ4
13) Aluminum unites with a second element, which we will represent by the symbol E, to form a definite compound whose formula is AlE3. Element E is most probably
A
an actinide element
B
a halogen
C
a transition element
D
an alkali metal
14) The correct formula for the compound formed between arsenic (As) and hydrogen is
A
AsH2
B
AsH
C
AsH3
D
AsH2
15) Which one of the following formulas is incorrect because it does not represent a known ionic compound?
A
NaO2
B
CaO
C
BaCl2
D
Al2F3
16) What is the correct name for the compound V2O5? (Remember, for transition metals . . .)
A
vanadic oxide
B
vanadium(V) pentoxide
C
divanadium pentoxide
D
vanadium(V) oxide
17) What is the correct name for the compound NaCl3?
A
sodium chlorate
B
there is no such compound
C
sodium trichloride
D
sodium chlorite
18) What is the correct name for the compound CuBr2?
A
copper dibromide
B
copper(I) bromide(II)
C
copper(II) bromite
D
copper(II) bromide
19) What is the correct name for the compound Na2O
A
sodium peroxide
B
sodium oxide
C
disodium oxide
D
sodium(I) oxide
20) Which one of the following is a correct formula for mercury(I) phosphate?
A
Hg3PO4
B
(Hg2)3(PO4)2
C
Hg2PO3
D
HgPO3
*select an answer for all questions
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