Polyatomic Ionic Compounds

Front

What is a polyatomic ion?

Back

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

Front

What is the formula for Calcium carbonate?

Back

CaCO₃

Front

How do you name a compound with a transition metal?

Back

You must indicate the oxidation state of the transition metal in Roman numerals in parentheses after the metal's name.

Front

What is the oxidation state of chromium in Cr(NO₂)₃?

Back

+3

Front

What is the name of the compound FeSO₄?

Back

Iron (II) Sulfate

Front

What is the formula for Sodium phosphate?

Back

Na₃PO₄

Front

How do you determine the name of a compound like BaO?

Back

Identify the metal (barium) and the non-metal (oxide), and combine them to form 'barium oxide'.

Front

What is the charge of the sulfate ion (SO₄²⁻)?

Back

-2

Front

What is the name of the compound Cr(NO₃)₃?

Back

Chromium (III) nitrate

Front

What is the significance of Roman numerals in naming transition metal compounds?

Back

Roman numerals indicate the oxidation state of the metal in the compound.