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1
What is the chemical formula for the ammonium ion?
A
NH4+
B
NH2-
C
NH3+
D
NO3-
2
Which polyatomic ion has the formula OH-?
A
Oxide
B
Hydrogen carbonate
C
Hydroxide
D
Hydronium
3
Which of the following is the correct formula for the nitrate ion?
A
N3-
B
NO3-
C
NO2-
D
NO-
4
The carbonate ion has which formula and charge?
A
CO2^2-
B
HCO3^-
C
CO3^2-
D
CO3^-
5
Which polyatomic ion is represented by the formula PO4^3-?
A
Perphosphate
B
Hydrogen phosphate
C
Phosphite
D
Phosphate