Chemistry Test: Oxyanion
Matching
Match the terms below with their correct definitions.
a. chlorate
d. perchlorate
b. hypochlorite
e. chlorite
c. chloride
1.
2.
3.
4.
5.
Cl–
ClO2–
ClO–
ClO3–
ClO4–
Multiple Choice
6. The chemical formula for an ionic compound represents the
a. number of ions in each molecule.
b. total number of ions in the crystal lattice.
c. ratio of the combined ions present in a sample.
d. number of atoms in each molecule.
7. What is the name of the compound NaNO3?
a. Sodiumic Acid
b. Sodium Nitric Acid
c. Monosodium Trinitride
d. Monodsodium Mononitrogen Trioxyide
e. Sodium Nitrate
8. What is the name of the compound NO-1?
a. Hyponitrite Ion
c. Nitrite Ion
e. Nitrate Ion
b. Pernitrate Ion
d. Nitric Acid
9. What is the formula for aluminum sulfate?
a. Al2(SO4)3
b. Al2SO4
c. Al(SO4)3
d. AlSO4
10. Name the compound Fe(NO3)2.
a. iron(II) nitrate
c. iron(II) nitrite
b. iron(III) nitride
d. iron(III) nitrate
11. How many extra electrons are in the Lewis structure of the phosphate ion, PO43–?
a. 4
b. 0
c. 3
d. 2
—
12. The anion that has the formula ClO is called the ____.
a. chlorate ion.
c. chloride ion.
b. hypochlorite ion.
d. perchlorate ion.
13. What is the formula for hydrochloric acid?
a. H2CO3
b. HF
c. HClO
d. HCl
14. What is the oxidation number of oxygen in most compounds?
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
a. –8
b. 0
c. +1
d. –2
Name the compound Ni(ClO3)2.
a. nickel(II) chlorite
c. nickel(II) chloride
b. nickel(II) peroxide
d. nickel(II) chlorate
-1
What is the name of the compound NO2 ?
a. Pernitrate Ion
c. Nitric Acid
e. Nitrate Ion
b. Hyponitrite Ion
d. Nitrite Ion
In a compound, the algebraic sum of the oxidation numbers of all atoms equals
a. 1.
c. 8.
b. the charge on the compound.
d. 0.
Name the compound Zn3(PO4)2.
a. zinc phosphate
c. trizinc polyoxide
b. zinc phosphite
d. zinc potassium oxide
The oxidation number of fluorine is
a. +1 in all compounds.
b. always 0.
c. equal to the negative charge of all the metal ions in a compound.
d. –1 in all compounds.
What is the name of the compound HNO3?
a. Nitrite Ion
c. Nitrate Ion
e. Nitric Acid
b. Pernitrate
d. Hyponitrite Ion
What is the formula of calcium phosphate, which is made up of the ions Ca 2+ and PO43–?
a. Ca3(PO4)2
b. Ca3PO4
c. Ca2(PO4)3
d. Ca6PO4
-1
What is the name of the compound NO4 ?
a. Nitric Acid
c. Hyponitrite Ion
e. Nitrate Ion
b. Nitrite Ion
d. Pernitrate Ion
What is the formula for the compound formed by lead(II) ions and chromate ions?
a. Pb2(CrO4)3
b. Pb(CrO4)2
c. PbCrO4
d. Pb2CrO4
-1
What is the name of the compound NO3 ?
a. Nitrite Ion
c. Nitrate Ion
e. Hyponitrite Ion
b. Nitric Acid
d. Pernitrate Ion
Name the compound KClO3.
a. potassium trioxychlorite
c. hypochlorite
b. potassium chlorate
d. potassium chloride