Ionic Compounds

Naming Ionic Compounds

100

Na₂S

Sodium Sulfide

200

Ca(NO₃)₂

Calcium Nitrate

300

Co(NO₃)₃

Cobalt (III) Nitrate

400

Pb(C₂H₃O₂)₄

Lead (IV) Acetate

500

(NH₄)₂Cr₂O₇

Ammonium Dichromate

Writing formulas

100

Write the formula for magnesium chloride

MgCl₂

200

Write the formula for aluminum oxide. 

Al₂O₃

300

Write the formula for iron(III) bromide.

FeBr₃

400

Write the formula for calcium phosphate.

Ca₃(PO₄)₂

500

Write the formula for chromium(VI) oxide.

CrO₃

Polyatomic Ions

100

What is the formula of sulfate?

SO₄²⁻

200

What is the formula of ammonium?

NH₄⁺

300

Name NH₄NO₃

Ammonium Nitrate

400

What is the charge of carbonate

2-

500

NH₄NO₃ has both covalent and what other type of bond

Ionic

Ions

100

What is a positively charged ion called?

Cation

200

What is a negatively charged ion called?

Anion

300

How does a sodium atom become Na⁺

It loses one electron

400

Which ion has a larger radius, Cl or Cl^-?

Cl^-

500

Why are ionic compounds electrically neutral?

The total positive and negative charges balance to zero

Properties and Molecular Solids

100

What type of bonds form in NaCl

Ionic bonds

200

Why do ionic compounds conduct electricity when melted?

Because ions are free to move.

300

Are molecular solids generally good or poor conductors of electricity?

Poor conductors

400

Why do ionic compounds generally have high melting points?

Strong electrostatic attractions require large amounts of energy to break.

500

Which would likely have the higher melting point: NaCl or CO₂?

NaCl