Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Bio > Chem > Flashcards

Chem Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Electrolysis

A

splitting up of substances using current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

anode

reaction =>

A

oxidation
(rac = reduction at cathode)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

cathode

reaction =>

A

reduction
(rac = reduction at cathode)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

anode

metal/non-metal =>

A

non - metal
(namc = non-metal anode metal cathode)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

cathode

metal/non-metal =>

A

metal
(namc = non-metal anode metal cathode)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

aluminium ore

A

bauxite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

metals that do not conduct

A

graphite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

inert

A

doesnt react/ corrode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Substance remaining in solution that is not displaced

A

most reactive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Element that is released at anode

A

family 7 (halogen) / 02

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

substance released at cathode

A

reactivity series

h2
copper
ag (silver)
gold
platinum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

electroplating
cathode is a _

A

conductor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

electroplating
cathode is a _

A

conductor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Ammonia FORMULA

A

NH3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Ammonium

A

NH4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Nitrate

A

NO3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Reactivity series phrase

A

Please Send Cats, Monkeys And Zebras In Lovely Cages of Silver, Gold and Platinum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Reactivity series

A

5
Potassium - please
Sodium - send
Calcium - cats
Magnesium - monkeys
Aluminum - and

Carbon

3
Zinc - zebras
Iron - in
Lead - lovely

Hydrogen

3
Copper - cages of
Silver - silver
Goldsliver - gold
Platinum -platinum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Electrolysis
Metals are produced at

A

Non-metal - Anode (+)
Metal - Catode (-)

Anode = + (anions -)
Cathode = - (cations +)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Electrolysis
Metals are produced at

A

Non-metal - Anode (+)
Metal - Catode (-)

Catode = - (cations +)
Anode = + (anions -)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Equation at anode (reduction/oxidation)

A

Oxidation

RAC (Reduction at cation)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Eq at cathode

Reduction/oxidation

A

Reduction

RAC (Reduction at cathode)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Metal + acid

A

metal hydroxide + hydrogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Metal + steam

A

metal oxide + hydrogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Aluminium ore

A

Bauxite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Bauxite

A

Aluminium ore

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

How is aluminium extracted

A

Electrolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Transition elements valency

A

Variable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

pH of sugar

A

7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Colour of pH 7

A

Green

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

CH4

A

Methane

32
Q

CO

A

Carbon monoxide

33
Q

Methane

A

CH4

34
Q

Most abundant metal in earth’s crust

A

Aluminium

35
Q

Reactive def

A

Strong drive to give up electrons and form ions

36
Q

Do salts conduct electricity

A

Some salts, such as sodium chloride (NaCl), potassium nitrate (KNO3), and calcium chloride (CaCl2), dissolve in water and dissociate into ions, which makes them good conductors of electricity. These salts are called electrolytes.

Other salts, such as silver chloride (AgCl) and lead sulfate (PbSO4), do not dissociate in water and do not conduct electricity. These salts are not electrolytes.

So, whether or not a salt is an electrolyte depends on its ability to dissociate into ions in water.

37
Q

What is rusting

Oxidation or reduction

A

Oxidation

38
Q

What does rust require

A

Both water and air

39
Q

Weaker acids dissociate

A

Less

40
Q

Acidic oxides

A

Dissolve in water to form acids

41
Q

Amphoteric oxides

A

React with both acids and alkaline

42
Q

Neutral oxides

A

React with neither acids not alkaline

43
Q

Eg of amphoteric oxides

A

Aluminium oxide

44
Q

Eg of neutral oxides

A

Carbon monoxide

45
Q

Galvanized

A

Coating iron with zinc

Zinc is more reactive so it gets oxidised rather than the iron

46
Q

Brine

A

Conc NaCl

47
Q

In electrolysis of brine what is the cathode made out of

A

Titanium

48
Q

In electrolysis of brine what is the anode made out of

A

Nickel

49
Q

Down a group of metals, elements become more/less reactive

A

Down a group of metals, elements become morereactive

50
Q

Table moves from metals on the ____ to non-metals on the ____.

left/right

A

Table moves from metals on the left to non-metals onthe right.

51
Q

With non-metals, going down a group, reactivity increases/decreases

A

With non-metals, going down a group, reactivitydecreases

52
Q

Alkali metals are what

A

Group 1

53
Q

In periodic table:- groups vs periods

A

Groups - columns
Periods - rows

54
Q

Alkali metals (chemical properties)

A
  • Readily react with oxygen andwater; stored in oil
  • React violently with chlorine
  • Burst into flames when heated with oxygen[red flame for lithium; yellow flame forsodium; lilac flame forpotassium]
  • Produce soluble white compounds.
  • React with water to form alkaline metal and hydrogen gas
55
Q

Alkali physical properties

A
  • Good conductors of heat andelectricity
  • Soft and easy to cut
  • Shiny when freshly cut
  • Low melting and boiling pointscompared to most metals.
  • Low densities for metals
56
Q

Rubidium reacts with water

A
  • Explodes with spark
  • Produces Rubidium hydroxide
57
Q

Caesium reacts with water

A
  • Violent explosion
  • Produces caesium hydroxide
58
Q

Francium reacts with water

A
  • Cannot predictive due to radioactive reactivity
59
Q

Test ammonia (NH3)

A

Damp red litmus paper turns blue

60
Q

Test CO2

A

Turns lime water milky

61
Q

Chlorine test

A

Bleaches red/blue litmus paper

62
Q

Hydrogen test

A

Place lighted splint, squeaky pop

63
Q

Oxygen test

A

Place glowing splint, splint relights

64
Q

Halogen Properties

A
  • Down the group; size, massand density increase
  • Poisonous
  • Down the group, colordarkens
  • Diatomic; form halide ions indisplacement reaction
  • Reactivity decreases down thegroup,
  • because it has to gain anelectron,
  • so the closer the electron is tothe positive nucleus the moreeasily it will be gained,
  • so atoms with fewer shells willreact more easily.
  • Do not conduct electricity
  • melting point increases downthe group
  • Brittle and crumbly when solid
65
Q

Halogens are group

A

Group 17

66
Q

States and Colors, at RTP:
* Fluorine-
* Chlorine-
* Bromine-
* Iodine-

A

States and Colors, at RTP:
* Fluorine- Yellow gas
* Chlorine- Green gas
* Bromine- Red liquid
* Iodine- Black solid

67
Q

Transition metals properties

A
  • High melting points (except mercury)
  • Malleable and ductile
  • Good conductors of heat & electricity (silver is the best)
  • High density
  • Have no trend in reactivity
  • Used as catalysts
  • Form colored compounds
  • Can form complex ions as they have variable valences
68
Q

Nobel gases are group

A

group 18

69
Q

Halogens properties

A
  • Density increases down thegroup
  • Monoatomic and colorless
  • M.P. and B.P. increases down the group
  • Don’t conduct electricity
  • Inert due to full outer shell electrons
70
Q

Physical properties of metals

A

Physical Properties
1.Good conductors of heat and electricity
2.High melting and boiling points
3.Malleable and Ductile
4.High densities
5.Solids at room temperature (except mercury)

71
Q

Chemical properties of metals

A
  • Form positive ions
  • Form basic oxides that dissolve in water
72
Q

Brass alloy

A
  • Copper and zinc
  • Stronger and more resistant to corrosion
  • Used for Electrical fittings, car radiators
73
Q

Bronze alloy

A
  • Copper and tin
  • Harder,stronger andsonorous
  • Statues, springs,coins
74
Q

Stainless steel alloy

A
  • Iron, carbon,chromium and nickel
  • resistant to corrosion
  • Kitchen sinks,cutlery, surgical instruments
75
Q

Why are alloys stronger than the pure metals

A

Metal alloys, due to the irregularity in atom sizes andstructure which stop layers from sliding over each other,are stronger

There structure are not like a grid but are more cramped

Bio (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions