Chemistry Unit 4 Test Review

Binary Covalent

100

Name this compound: PF₃

phosphorus trifluoride

200

Name this compound: N₂Cl₄

dinitrogen tetrachloride

300

What is the formula for this compound: diarsenic trioxide

As₂O₃

400

What is the formula for this compound: tetraphosphorous decoxide

P₄O₁₀

500

What is the formula for this compound: nitrogen trihydride

NH₃

Binary Ionic

100

What is the formula for this compound: lithium bromide

LiBr    (Li⁺ & Br^-)

200

What is the name for this compound: AlI₃

aluminum iodide

300

What is the formula for this compound: Fe₂O₃

Iron (III) oxide (Fe³⁺ & O^2-)

400

What is the formula for lead (II) oxide? 

PbO (Pb²⁺ & O^2- --> the charges cancel)

500

What is the name of this compound: MnBr₄

Manganese (IV) bromide (Mn⁴⁺ & Br^-)

Acids

100

What is the name of this compound: HClO₄

Chloric acid  (polyatomic ion ending -ate -> -ic acid) 

200

What is the formula for phosphoric acid?

H₃PO₄  (H⁺ & PO₄^3-  -> swap and drop)

300

What is the name of this compound: HNO₃

nitrous acid ( polyatomic ion ending ite -> -ous acid)

400

What is the formula for hydrochloric acid? 

HCl (binary acid = hydro + element with -ic acid ending)

500

What is the name of this compound: HF

hydrofluoric acid (binary acid = hydro + element with -ic acid ending)

Polyatomic Ions

100

What is the name of this compound: CaSO₄

Calcium sulfate (1st element & polyatomic ion)

200

What is the formula for sodium carbonate? 

Na₂CO₃  (Na⁺ & CO₃^2- --> swap and drop)

300

What is the name of this compound: Pb₃(PO₄)₂

lead (II) phosphate (1st element = Pb⁺² & 2nd polyatomic = PO₄^3-)

400

What is the formula for iron (II) nitrite?

Fe(NO₂)₂   (Fe²⁺ & NO₂^1- --> swap and drop)

500

What is the name of this compound: copper (I) sulfite

Cu₂SO₃  (Cu¹⁺ & SO₃^2- --> swap and drop)