Polyatomic Ions (-2 and -3)

Front

What is the chemical formula for sulfite?

Back

SO3-2

Front

What is the chemical formula for phosphate?

Back

PO4-3

Front

What is the chemical formula for silicate?

Back

SiO3-2

Front

What is the chemical formula for dichromate?

Back

Cr2O7-2

Front

What is the chemical formula for sulfate?

Back

SO4-2

Front

Define polyatomic ion.

Back

A polyatomic ion is a charged species composed of two or more atoms covalently bonded, that can act as a single unit in chemical reactions.

Front

What charge does a sulfate ion carry?

Back

-2

Front

What charge does a phosphate ion carry?

Back

-3

Front

What is the difference between sulfite and sulfate?

Back

Sulfite (SO3-2) has one less oxygen atom than sulfate (SO4-2).

Front

List two examples of polyatomic ions with a -2 charge.

Back

Sulfate (SO4-2) and sulfite (SO3-2).