Chem 115 Review

Question 1

Iconic bond

Answer 1

Transfer of electrons

Held together through electrostatic interactions

Metal + nonmetal

Ionic compounds dissolve in water

Question 2

Covalent Bond

Answer 2

Sharing of electrons

Two nonmetals

Electron with the more electronegative atom

Question 3

Is the following an e.g. of ionic bond or covalent bond?

NaF

Answer 3

Ionic

Question 4

Is the following an e.g. of covalent or ionic bond?

SiS2

Answer 4

Covalent

Question 5

Dipole moment

Answer 5

Describes polarity of the bond (separation of charge between atoms)

Question 6

Do polar or nonpolar molecules have a dipole moment?

Answer 6

Polar molecules

Not nonpolar because bonds are not polar or because the sum of the dipoles of all bonds in molecule cancel out

Question 7

Polyatomic ions

Answer 7

Two or more covalently bound atoms with an overall net charge

As a unit they form ionic bonds and generally behave like other cations/ anions

Within ion, the atoms are covalently bound to each other (stay as a unit in solution)

Question 8

OH-

Answer 8

Hydroxide

Question 9

CN-

Answer 9

Cyanide

Question 10

SCN-

Answer 10

Thiocyanate

Question 11

CH3COO-

Answer 11

Acetate

Question 12

NO2-

Answer 12

Nitrite

Question 13

NO3-

Answer 13

Nitrate

Question 14

ClO-

Answer 14

Hypochlorite

Question 15

ClO2-

Answer 15

Chlorite

Question 16

ClO3-

Answer 16

Chlorate

Question 17

ClO4-

Answer 17

Perchlorate

Question 18

NH4+

Answer 18

Ammonium

Question 19

O2-2

Answer 19

Peroxide

Question 20

CO3-2

Answer 20

Carbonate

Question 21

SO3-2

Answer 21

Sulfite

Question 22

SO4-2

Answer 22

Sulfate

Question 23

C2O4-2

Answer 23

Oxalate

Question 24

CrO4-2

Answer 24

Chromate

Question 25

CrO7-2

Answer 25

Dichromate

Question 26

PO3-3

Answer 26

Phosphite

Question 27

PO4-3

Answer 27

Phosphate