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