exam 3

Question 1

The oxidation state of an atom is

Answer 1

Zero. Examples: Na(s), O2(g), O3(g), Hg(l)

Question 2

The oxidation state of a monatomic ion is

Answer 2

The same as its charge. Examples: Na+, Cl-

Question 3

The oxidation state of Fluorine is

Answer 3

-1 in its compounds. Examples: HF, PF3

Question 4

The oxidation state of oxygen is usually

Answer 4

-2 in its compound. Exception: peroxides (containing O2^2-) in which oxygen is -1. Examples H2O, CO2

Question 5

The oxidation state of hydrogen is

Answer 5

+1 in its covalent compounds. Examples: H2O, HCL, NH3

Question 6

Strong Acids

Answer 6

HI, HNO3, H2SO4, HClO4, HCl, HBr (Hydrobromic acid) HCl and HBr don’t contain oxygen.

Question 7

HF (does not contain oxygen)

Answer 7

Hydrofluoric acid

Question 8

HCL (does not contain oxygen)

Answer 8

Hydrochloric acid

Question 9

HBr (does not contain oxygen)

Answer 9

Hydrobromic acid

Question 10

HI (does not contain oxygen)

Answer 10

Hydroiodic acid

Question 11

HCN (does not contain oxygen)

Answer 11

Hydrocyanic acid

Question 12

H2S (does not contain oxygen)

Answer 12

Hydrosulfuric acid

Question 13

HNO3 (contains oxygen)

Answer 13

Nitric acid

Question 14

HNO2 (contains oxygen)

Answer 14

Nitrous acid

Question 15

H2SO4 (contains oxygen)

Answer 15

Sulfuric acid

Question 16

H2SO3 (contains oxygen)

Answer 16

Sulfurous acid

Question 17

H3PO4 (contains oxygen)

Answer 17

Phosphoric acid

Question 18

HC2H3O2 (contains oxygen)

Answer 18

Acetic Acid

Question 19

1.00 atm=

Answer 19

760.mmHg, 760.torr, 101.KPa

Question 20

Molar volume

Answer 20

P V/n = n/n RT