Nomenclature

What's the formula?

100

Ammonium 

NH₄⁺¹

200

Perchlorate

ClO₄^-1

300

Peroxide

O₂​^-2​​​

400

Hydroxide

OH^-1

500

Phosphate

PO₄^-3

True or false

100

When naming ionic compounds, the anions are written first.

False

200

Almost all polyatomic ions are negatively charged ions

True

300

In acids the element hydrogen actually behaves like a Group 1A metal cation. Since it behaves like a +1 cation, hydrogen is always written first in the formulas of all acids. The anion in the acid can be either monatomic or polyatomic, but does not affect how the acid is named.

False- The anion in the acid can be either monatomic or polyatomic, and affects how the acid is named.

Charges

100

What is the charge of Group 1A ions?

+1

Name the ion

300

BrO^-

hypobromite

400

CO₃^-1

Carbonate

500

S₂O₃^-2

Thiosulfate

What is a...

100

Covalent compound 

Covalent compounds are compounds formed between non-metals only.

200

Ionic compound

Ionic compounds form when metals and nonmetals exchange electrons