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pasama - cqa > group 1a > Flashcards

group 1a Flashcards

1
Q

most reactive group

A

alkali metals

group 1a

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2
Q

most electronegative metals

A

alkali metals

group 1a

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3
Q

when combined with hydrogens, alkali metals form ____

A

hydrides

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4
Q

alkali metals react with water to form ____

A

metal hydroxides

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5
Q

alkali metals react with halogens to form ____

A

ionic salts, metal halides

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6
Q

metal hydrides react with water to produce ____ and ____

A
  • hydrogen gas
  • metalic hydroxide
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7
Q

when combined with oxygen, alkali metals form ____

A

oxides

aka peroxides or superperoxides

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8
Q

when combined with hydroxides, alkali metals become ____

A

strong alkali or base

except for lithium due to its small size

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9
Q

who discovered the hydrogen?

A

Henry Cavendish

back then, H was still called as “burnt water”

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10
Q

who coined the term “hydrogen”?

A

Atoine Lavoiser

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11
Q

other names of hydrogen

A
  • burnt water
  • inflammable air
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12
Q

what is the lightest and most abundant element?

A

hydrogen

H

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13
Q
  • cation form of hydrogen
  • anion form of hydrogen
A
  • monovalent or hydronium
  • hydride
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14
Q

preparation processes of hydrogen

A
  • lane process
  • messerschmidt process

produce 99% pure hydrogen

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15
Q

most common or abundant isotope of hydrogen

A

protium

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16
Q

most stable hydrogen isotope; not radioactive and not toxic

A

deuterium

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17
Q

regarded as the “heavy hydrogen”

A

deuterium

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18
Q

very radioactive and unstable hydrogen isotope

A

tritium

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19
Q

used in hydrogen bombs

A

lithium deuterium

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20
Q

lithium isotopes that produce tritium when combined

A

L16 and L17

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21
Q

petalite, a source of lithium, is composed of what elements?

A
  • lithium
  • aluminum
  • silicate
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22
Q

2 sources of lithium

A
  • petalite
  • spodumine or trithane
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23
Q

aside from lithium, spodumine is also a source of?

A

ceramic materials

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24
Q

the lightest metal and solid metal on Earth

A

lithium

Li

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25
Q

who discovered lithium?

A

J.A. Arfvedson

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26
Q

other name for lithium

A

earth stone

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27
Q

lithia is regarded as ____

A

principal mineral spodumine

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28
Q

components of lithia water

A
  • lithium carbonate
  • lithium chloride
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29
Q

an ingredient in lithium ion batter and used in O-LED TVs

A

lithium fluoride

30
Q

used in the treatment of manic disorder

A

lithium citrate

31
Q
  • 6th most abundant element in Earth’s crust
  • 5th most abundant metal
A

sodium

Na

32
Q

meaning of the Na symbol of sodium

A

natrium

33
Q

who isolated sodium?

A

Humphrey Davy

he also discovered potassium

34
Q

sources of sodium

A
  • sodalite
  • rock salt
  • feldspar
35
Q

the most abundant extracellular fluid cation and a major contributor in extracellular osmotic pressure

A

sodium

36
Q

maximum amount of sodium that can be taken per day

A

2.3 g/day

37
Q

the cation of choice to optimize the pharmaceutical utility of organic medicaments

A

sodium

38
Q

used as an electromicroscope staining to see the presence of sodium acetate

A

magnesium uranyl acetate

a test for sodium acetate

39
Q

“sodium reagent” is also called as

A

zinc uranyl acetate

a test for sodium acetate

40
Q

an antidote for zinc poisoning

A

sodium acetate

41
Q

also known as “baking soda”

A

sodium bicarbonate

42
Q

the 2nd major extracellular anion

A

sodium bicarbonate

43
Q

the 3 tests for sodium aetate

A
  • zinc uranyl acetate
  • magnesium uranyl acetate
  • cobalt uranyl acetate
44
Q

the primary standard for acid-base tritations

A

sodium carbonate

45
Q

used in the manufacture of soda lime glass

A

sodium carbonate

46
Q

preparation of obtaining sodium carbonate is called ____

A

solvay process

produces anhydrous soda ash or “calcined soda”

47
Q

a water softening agent for hard water that dissolves magnesium and calcium

A

sodium carbonate

48
Q

3 forms of sodium carbonate

A
  • decahydrate
  • sesquihydrate
  • anhydrous
49
Q

decahydrate sodium carbonates

A
  • washing soda
  • sal soda
  • soda crystal
50
Q

sesquihydrate sodium carbonates

A
  • trona
  • urao
51
Q

anhydrous sodium carbonates

A
  • soda ash
  • calcined soda
52
Q

aka sodium pyrosulfite

A

sodium metabisulfite

Na2S2O5

53
Q

came from sodium hydroxide and disulfur monoxide

A

sodium metabisulfite

54
Q

used in “micropack” silica gel that has antimicrobial and anti-mold properies

A

sodium metabisulfite

55
Q

usually used in the production of epinephrine as an excipient

A

sodium metabisulfite

56
Q

other names for sodium chloride

A
  • rock salt
  • halite
  • table salt
  • soler salt
57
Q

differentiate rock salt from soler salt

A
  • rock salt - mined underground
  • soler salt - evaporated from seawater
58
Q

sodium was formerly called as ____

A

salarium

historically given to soldiers as their salary

59
Q
A
60
Q

antidote for silver poisoning

A

sodium chloride

61
Q

sodium salt that acts as sequestering agent in Benedict’s reagent

used as a test for reducing sugars

A

sodium citrate

62
Q

anticoagulant of choice for most coagulation studies in vitro and a pro-coagulant in vivo

A

sodium citrate

63
Q

used to prevent the greasiness of melting cheese

A

sodium citrate

64
Q

this sodium salt is poisonous to rats

A

sodium flouride

65
Q

the first fluoride compound used in water fluoridation

A

sodium fluoride

66
Q

percentage concentration of sodium fluoride when used as anti-cariogenic

A

2%

67
Q

other names for sodium hydroxide

A
  • caustic soda
  • sosa
  • lye
68
Q

TRUE OR FALSE

all hydroxide are caustic

A

true

69
Q

this readily attacks glass; used in water attack test

A

sodium hydroxide

70
Q
A

pasama - cqa (2 decks)

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