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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
copper(II) sulfite
C
dicopper sulfur trioxide
D
cuprous sulfate
2) The number of atoms in one formula unit of the substance, CO(NH2)2, is
A
8
B
5
C
7
D
6
3) How many atoms are there in one formula unit of NiSO4 · 7H2O?
A
9
B
14
C
28
D
27
4) Which one of the following compounds is correctly described as a hydrate?
A
CaH2
B
NaOH
C
HC2H3O2
D
CoCl2 · 6H2O
5) Which one of the following is correctly classified as a hydrocarbon?
A
C8H16
B
NaHCl
C
C6H12O6
D
HC2H3O2
6) The common name for the compound, CH4, is
A
carbon tetrahydride
B
methane
C
carbon(IV) hydride
D
carbonic acid
7) What is the correct name for the compound IBr3?
A
iodine tribromide
B
iodine bromate
C
bromic iodide
D
monoiodine tribromite
8) What is the correct name for the compound HI(g)?
A
hydrogen iodide
B
iodic acid
C
e. monohydrogen monoiodide
D
hydriodic acid
9) What is the correct name for the compound S2Cl2?
A
disulfur dichloride
B
disulfur dichlorine
C
sulfur(I) chloride
D
disulfur chlorate
10) What is the correct name for the compound HCN(g)?
A
hydrogen carbonitride
B
hydrogen cyanate
C
hydrocyanic acid
D
hydrogen cyanide
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 electrons
B
gains two protons
C
loses two electrons
D
loses two protons
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
XQ
B
X2Q
C
XQ4
D
XQ2
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
a transition element
B
an alkali metal
C
a halogen
D
an actinide element
14) The correct formula for the compound formed between arsenic (As) and hydrogen is
A
AsH3
B
AsH2
C
AsH2
D
AsH
15) Which one of the following formulas is incorrect because it does not represent a known ionic compound?
A
BaCl2
B
NaO2
C
Al2F3
D
CaO
16) What is the correct name for the compound V2O5? (Remember, for transition metals . . .)
A
vanadic oxide
B
vanadium(V) pentoxide
C
vanadium(V) oxide
D
divanadium pentoxide
17) What is the correct name for the compound NaCl3?
A
sodium trichloride
B
there is no such compound
C
sodium chlorate
D
sodium chlorite
18) What is the correct name for the compound CuBr2?
A
copper(I) bromide(II)
B
copper dibromide
C
copper(II) bromide
D
copper(II) bromite
19) What is the correct name for the compound Na2O
A
sodium(I) oxide
B
disodium oxide
C
sodium peroxide
D
sodium oxide
20) Which one of the following is a correct formula for mercury(I) phosphate?
A
Hg2PO3
B
(Hg2)3(PO4)2
C
HgPO3
D
Hg3PO4
*select an answer for all questions
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