Section 11.2- Alkali Metals

Question 1

vary widely in abundance

Answer 1

alkali metals

Question 2

high reactivity and electrical conductivity of alkali metals are to be expected since they have

Answer 2

low first ionization energies and can easily lose electrons

Question 3

alkali metals are generally obtained by ________________ of their molten chloride salts

Answer 3

electrolysis

Question 4

used in the manufacture of drugs and dyes

Answer 4

sodium

Question 5

has excellent thermal conductivity and is used as a heat-transfer liquid

Answer 5

sodium

Question 6

an alloy of __________ and aluminum forms a very strong, lightweight metal use in aircraft and spacecraft

Answer 6

lithium

Question 7

are used to remove oxygen from vacuum tubes

Answer 7

rubidium and cesium

Question 8

alkali metals are most commonly used in their

Answer 8

compounds

Question 9

one of the most widely used chemicals in the US

Answer 9

sodium hydroxide

Question 10

uses of lithium

Answer 10

1.lithium batteries,
2. medicine,
3. lightweight aerospace alloys,
4. heat-transfer liquid in some
nuclear reactors;
5. nuclear weapons

Question 11

uses of sodium

Answer 11

1. numerous important industrial compounds
2. reduction of some metals
3. heat-transfer liquid in some nuclear
   reactors
4. street lamps

Question 12

uses of potassium

Answer 12

1. important industrial compounds

Question 13

uses of rubidium

Answer 13

1. O2 remover in vacuum tubes

Question 14

uses of cesium

Answer 14

1. photoelectric cells,
2. O2 remover in vacuum tubes
3. atomic clocks

Question 15

uses of the alkali metal compound SODIUM HYDROXIDE (caustic soda)

Answer 15

production of rayon, cellulose, paper, soaps, detergents, textiles, oven cleaners, petroleum products

Question 16

uses of the alkali metal compound SODIUM CARBONATE (soda ash)

Answer 16

manufacture of glass, soap, and detergents

Question 17

uses of the alkali metal compound SODIUM HYDROGEN CARBONATE (sodium bicarbonate)

Answer 17

manufacture of effervescent salts and beverages;

baking powder

Question 18

uses of the alkali metal compound SODIUM PHOSPHATES

Answer 18

detergents

Question 19

uses of the alkali metal compound POTASSIUM NITRATE

Answer 19

1. pyrotechnics
2. explosives
3. matches
4. fertilizers

Question 20

uses of the alkali metal compound POTASSIUM CARBONATE (potash)

Answer 20

1. manufacture of special glass for optical instruments and electronic devices
2. manufacture of soft soaps

Question 21

uses of the alkali metal compound POTASSIUM BROMIDE

Answer 21

sedative

Question 22

uses of the alkali metal compound POTASSIUM IODIDE

Answer 22

iodized salt