Ionic vs. Covalent

Ionic or Covalent?

100

CO₂

What is Covalent?

Non-Metal & Non-Metal

200

RuCl₂

What is Ionic?

Metal & Non-Metal

300

SF₆

What is Covalent?

Non-Metal & Non-Metal 

400

C₂H₅Cl

What is Covalent?

500

NH₄CH₃COO

What is ionic?

Naming Covalent Compounds

100

CO

What is Carbon Monoxide?

200

NH₃

What is Nitrogen Trihydride?

(also acceptable: ammonia)

300

SiO₂

What is Silicon Dioxide?

400

SF₆

What is Sulfur Hexafluoride?

500

P₂Br₄

What is Diphosphorus Tetrabromide?

Naming Ionic Compounds

100

LiF

Lithium Flouride

200

Ba₃(PO₄)₂

What is barium phosphate?

300

Cs₂SO₃

What is cesium sulfite?

400

This is the name for MoCH₃COO.

What is molybdenum (I) acetate?

500

CrCO₃

What is chromium (II) carbonate?

Simple Ionic Formulas

100

Sodium Chloride

NaCl

200

Potassium Iodide

KI

300

Calcium Chloride

CaCl2

400

Barium Fluoride

BaF2

500

Aluminum Oxide

Al2O3

Editing and Revisions

100

NaCl: sodium (I) chloride

What is sodium chloride? 

No Roman numeral needed, since Na is a simple metal.

200

NiBr₂: nickel bromide

What is nickel (II) bromide? 

A charge must be specified using Roman numerals, since Ni is a transition metal.

300

potassium oxalate: K₂(C₂O₄)

What is K₂C₂O_4?

No parentheses needed since there is only one oxalate ion involved.

400

Pd(CO₃)₂ : palladium (II) carbonate

What is palladium (IV) carbonate?

Each carbonate contributes -2, so -4 total. Charge on the palladium is +4. 

500

Ammonium dichromate: NH₄⁺Cr²O⁷₂

What is (NH₄)₂Cr₂O₇?

Charges should never be included in your final formula. # of atoms is always represented as SUBscript.