Brainscape's Knowledge GenomeTM

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


See full index

Chem 30 > Electrochemistry > Flashcards

Electrochemistry Flashcards

You may prefer our related Brainscape-certified flashcards:
Chemistry 101 flashcards Periodic Table flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

Cathode

A

the SOA and site of reduction half reaction

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

Anode

A

the SRA and site of oxidation half reaction

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

Electrode

A

solid pieces of metal where half reactions occur

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

Salt bridge

A

allows the flow of ions between half cells

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

Flow towards the anode

A

Anions

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

Flow towards the cathode

A

Cations

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

(Type of cell) are spontaneous

A

Volatic cells

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

(Type of cell) are not spontaneous

A

Electrolytic cells

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

Wire

A

allows electrons to flow from anode to cathode

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

An SOA half reaction represents the..

A

cathode

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

An SRA half reaction represents the..

A

anode

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

Electrons flow from..

A

anode to cathode

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

Anions move to the anode from the…

A

cathode half cell

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

Cations move to the cathode from the…

A

anode half cell

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

Inert electrode

A

an electrode (solid metal) that doesn’t react

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

Common inert electrodes

A

Carbon (C) or platinum (Pt)

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

When must an inert electrode be used?

A

when there is not a solid in the half reaction

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

Any half reaction higher than hydrogen (0) has…

A

a positive potential difference

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

Any half reaction lower than hydrogen (0) has…

A

a negative potential difference

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

Potential difference (voltage) formula

A

cathode - anode or SOA - SRA

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

If the reduction potential for Ag+ is +0.80, then what is it’s oxidation potential?

A

-0.80

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

Converts chemical energy to electrical energy

A

Voltaic cells

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

Converts electrical energy to chemical energy

A

Electrolytic cells

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

E net is positive

A

Voltaic

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

E net is negative

A

Electrolytic

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

Ex. of what?
Ag (s)|AgNO3 (aq)||Zn(NO3)2 (aq)|Zn (s)

A

Voltaic cell

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

Ex. of what?
C (s)|CuSO4 (aq)|C (s)

A

Electrolytic cell

28
Q

What type of cell needs two seperate beakers for an experiment?

A

Voltaic cells

29
Q

What type of cell can use one whole beaker for an experiment?

A

Electrolytic cells

30
Q

What does it mean when a substance is molten?

A

no water is present

31
Q

How do you determine a molten substance?

A

if an ionic compound has a liquid subscript (l)

32
Q

Formula to find moles of electrons

A

Ne=IT/F

33
Q

Ne = ?

A

moles of electrons

34
Q

I = ?

A

current (amps) c/s

35
Q

T = ?

A

time (seconds)

36
Q

F = ?

A

faraday’s constant

37
Q

What words help determine if a question is cell stoich?

A

plated, current, or time

38
Q

Dry cell

A

sealed electric cell with semi-solid conductors

39
Q

Primary battery

A

cell that can’t be recharged

40
Q

Secondary battery

A

rechargeable cell

41
Q

Fuel cell

A

cell where the fuel is continuously added

42
Q

Disporportionation reaction

A

occurs when a substance is both the OA and RA

43
Q

What reaction types are redox reactions?

A

single rep., formation, decomposition, combustion

44
Q

What reaction types are not redox reactions?

A

dbl rep., dissociation

45
Q

What is the oxidation number for all pure elements?

A

0

46
Q

What is the oxidation number for oxygen and what is the one exception?

A

it is always -2, except in peroxides which then it is -1

47
Q

What is the oxidation number for groups 1 and 2 on the periodic table?

A

group 1 is +1, group 2 is +2

48
Q

How is the oxidation number determined when two nonmetals combine?

A

the one with the higher EN will be the starting point to determine the others

49
Q

If the word “acidic” or “basic” is mentioned in a question, what species should be listed?

A

H+ and OH-

50
Q

What type of acids are not ionized meaning they don’t dissociate completely?

A

weak acids

51
Q

What type of acids are ionized meaning they dissociate completely?

A

strong acids

52
Q

Reduction

A

gaining electrons

53
Q

Oxidation

A

losing electrons

54
Q

Ingredient added that causes reduction

A

RA

55
Q

Ingredient added that causes oxidation

A

OA

56
Q

Get oxidized, not reduced

A

RA’s

57
Q

Get reduced, not oxidized

A

OA’s

58
Q

Gain electrons, get reduced

A

OA’s

59
Q

Lose electrons, get oxidized

A

RA’s

60
Q

When electrons are lost, they are on…

A

the right side of the equation

61
Q

Electrons on the right side of equation

A

oxidation

62
Q

When electrons are gained, they are on…

A

the left side of the equation

63
Q

Electrons on the left side of the equation

A

reduction

64
Q

What happens to the electrons and overall charge when oxidation occurs?

A

electrons are lost, and charge gets more positive

65
Q

What happens to the electrons and overall charge when reduction occurs?

A

electrons are gained, and charge gets more negative

Chem 30 (3 decks)

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