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2nd Nine Weeks Exam
By Mary Coleman
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Last updated about 1 year ago
20 questions
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Question 1
1.
Which of the following would be the correct name for N
2
O
3
?
dinitrogen trioxide
nitrogen(II) oxide
nitrogen(III) oxide
nitrogen oxide
Question 2
2.
What is the formula of the compound formed between the potassium ion and the sulfide ion?
KS
KS
2
K
2
S
3
KS
3
K
2
S
Question 3
3.
Iron (III) sulfite has the formula:
Fe
3
SO
3
Fe
2
(SO
4
)
3
Fe
2
(SO
3
)
3
Fe
2
SO
3
Question 4
4.
The correct formula for a substance composed of ions Ag
+
and CO
3
2-
is ________________.
AgCO
3
Ag
2
CO
3
Ag
3
CO
3
Ag
2
(CO
3
)
2
Question 5
5.
_______________ is the formula of a binary compound.
NaOH
HNO
3
Al
2
O
3
O
2
Question 6
6.
CaCl2 is called _____________________.
calcium chlorate
calcium chloride
calcium chromate
calcium chlorite
Question 7
7.
If the algebraic addition of the charges on the atoms or ions in a compound add up to _______________, the formula for the compound is correct.
4
1
2
0
Question 8
8.
An ion with an oxidation number of +2 can combine with two identical ions, each having an oxidation number of _________________________.
-2
+2
+1
-1
Question 9
9.
The Roman numeral II in the name copper (II) sulfate indicates ________________________.
there are two copper ions per molecule
there are two copper atoms per molecule
there are two sulfate ions per molecule
copper is in the +2 state
Question 10
10.
Which of the following formulas is incorrect?____________________
AlPO4
NaS
Ca(OH)2
KNO3
Question 11
11.
Select the correct name of the following compound: Fe(OH)
2
Iron hydroxide
Iron hydrogen oxide
Iron (II) hydroxide
Ferrous hydrogen
Question 12
12.
Select the correct name of the following compound: Cr
2
O
3
Chromium (II) oxide
Chromium (III) oxide
Chromium trioxide
Chromium oxide
Question 13
13.
Select the correct name of the following compound: AgF
Silver monofluoride
Silver fluoride
Silver (II) fluoride
Gold fluoride
Question 14
14.
Select the correct formula for the following compound: Ammonium chloride
NH
4
ClO
NH
4
Cl
2
NH
4
C
NH
4
Cl
Question 15
15.
Select the correct formula for the following compound: Potassium sulfate
K
2
SO
4
K
2
S
4
K
2
SO
3
K
2
(SO
4
)
2
Question 16
16.
Select the correct formula for the following compound: Cobalt (II) oxide
Co
2
O
CoO
CoO
2
Co
2
O
2
Question 17
17.
Select the correct formula for the following compound: Manganese (IV) oxide
MgO
2
Mn
4
O
2
MnO
2
Mn
4
O
4
Question 18
18.
Select the correct name for the following compound: Cu
2
O
copper oxide
copper (II) oxide
copper (I) oxide
Dicopper monoxide
Question 19
19.
Sodium cyanide, NaCN, contains a cyanide ion. What is the charge on the cyanide ion?
+1
+2
-2
-1
Question 20
20.
Which chemical formula does not represent a possible compound with sulfate, SO4?
Na
2
SO
4
KSO
4
Al (SO
4
)
3
CaSO
4