Exam 2

Question 1

Ionic Compounds

Answer 1

Metal and non-metal bond

Question 2

Covalent Compound

Answer 2

Non-metal and a non-metal bond (will use prefixes when naming compounds)

Question 3

Valence Shell Electron Placement Repulsion Theory (VSEPR)

Answer 3

The idea that electron clouds are arranged as far apart as possible. This dictates the geometry or the bond angles.

Question 4

4 electron clouds

Answer 4

tetrahedral=109

Question 5

3 electron clouds

Answer 5

trigonal planar=120

Question 6

2 electron clouds

Answer 6

linear=180

Question 7

Question 8

0-0.4

Answer 8

Nonpolar covalent bond

Question 9

0.5-1.8

Answer 9

Polar covalent bond

Question 10

1.9+

Answer 10

Ionic bond

Question 11

Symmetry may cancel polar bonds if…

Answer 11

linear, trigonal planar, or tetrahedral

Question 12

Symmetry that results in a polar molecule…

Answer 12

trigonal pyramidal, bent

Question 13

Order of strongest bonds…

Answer 13

ionic, hydrogen, dipole-dipole (polar), dispersion (nonpolar)

Question 14

What’s required in order for a hydrogen bond to happen?

Answer 14

Must be bonded with N, O, or F. Must have lone pair on previously mentioned molecules.

Question 15

Trends of stronger forces…

Answer 15

Higher melting temperature, higher boiling temperature, lower vapor pressure

Question 16

1 atm

Answer 16

760 torr or mmHG

Question 17

Ideal Gas Law

Answer 17

P1V1/n1T1=P2V2/n2T2

Question 18

At STP…

Answer 18

22.4 L=1 mol