Polyatomic Ions

What is the name of the OH^-1 ion?

• Hydride

• Hydroxide

• Oxide

• Hydrogen oxide

Which polyatomic ion has a -2 charge?

• arsenate

• nitrate

• monohydrogen phosphate

• chlorite

What is the name of the polyatomic ion whose formula is ClO₃^-?

• carbonate

• chlorite

• chlorate

• oxalate

The _ ion has two oxygen atoms.

• sulfite

• nitrite

• permanganate

• dichromate

The ion with the formula SCN^- is called __.

• cyanide

• cyanic sulfide

• cyanic acid

• thiocyanate

What is the formula for the carbonate ion?

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Oxalate is a polyatomic ion made of _ and _, and it has a _ charge.

• carbon; hydrogen; 2+

• carbon; hydrogen; 2-

• carbon; oxygen; 2+

• carbon; oxygen; 2-

The correct formula for the ammonium ion is __.

• NH₃⁺

• NH₄⁺

• NH₃

All of the following ions contain 4 oxygen atoms except __.

• chromate

• perchlorate

• nitrate

• arsenate

The __ ion has the formula OH^-1.

• hydride

• oxide

• hydrate

• hydroxide