quiz 2 (molecules, ions, compounds)

H₃O⁺

hydronium ion

NH₄⁺

ammonium ion

CH₃CO₂^-

acetate ion

CO₃^2-

carbonate ion

HCO₃^-

bicarbonate ion

CrO₄^2-

chromate ion

Cr₂O₇^2-

dichromate ion

CN^-

cyanide ion

OH^-

hydroxide ion

OCl^-

hypochlorite ion

NO₃^-

nitrate ion

NO₂^-

nitrite ion

C₂O₄^2-

oxalate ion

MnO₄^-

permanganate ion

PO₄^3-

phosphate ion

HPO₄^2-

biphosphate ion

H₂PO₄^-

dihydrogen phosphate ion

SO₄^2-

sulfate ion

HSO₄^2-

bisulfate ion

SO₃^2-

sulfite ion

CH₃COOH

acetic acid

H₂CO₃

carbonic acid

HCl

hydrochloric acid

HNO₃

nitric acid

HNO₂

nitrous acid

H₃PO₄

phosphoric acid

H₂SO₄

sulfuric acid

diatomic molecules

H₂, N₂, O₂, F₂, Cl₂, Br₂, I₂

linear

2 bonds, 0 lone pairs, 180 degrees

trigonal planar

3 bonds, 0 lone pairs, 120 degrees

bent

2 bonds, 1 lone pairs, 120 degrees

tetrahedral

4 bonds, 0 lone pairs, 109.5 degrees

pyramidal

3 bonds, 1 lone pair, 109.5 degrees

bent

2 bonds, 2 lone pairs, 109.5 degrees

electronegativity of ionic bond

0-0.4

electronegativity of polar covalent bond

0.5-1.9

electronegativity of nonpolar covalent bond

2.0+