Chapter 2: Polar Covalent Bonds; Acids and Bases Flashcards

1
Q

bonded atoms share electrons evenly

A

Nonpolar Covalent

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2
Q

One of the atoms attracts electrons more than the other

A

Polar Covalent

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3
Q

how strongly an atom attracts shared electron

A

electronegativity

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4
Q

what difference of electronegativity is considered to be polar

A

(0.5- 1.5)

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5
Q

what difference of electronegativity is considered to be nonpolar

A

(0 - 0.5)

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6
Q

what difference of electronegativity is considered to be ionic

A

1.5 >

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7
Q

which atom has the most electrons

A

the atom that is most electronegative (partiale -)

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8
Q

what is a sign of polarity

A

lone pairs

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9
Q

things that have the same formula but different structures

A

constitutional isomers

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10
Q

is a substance that donates a hydrogen ion (H+), also called a proton

A

Bronsted acid

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11
Q

s a substance that accepts the H

A

Bronsted base

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12
Q

what is a strong acid

A

a compound that completely dissociates

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13
Q

a strong acid makes what kind of base

A

weak and stable

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14
Q

what is a alpha carbon

A

the carbon that the functional group is attached to

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15
Q

what does it mean when the octet is full

A

stability

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16
Q

what does it mean when a electronegative atom is already carrying a negative formal charge?

A

the compound is stable

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17
Q

how are stability and acidic strength related

A

directly

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18
Q

how are electronegativity and acidic strength related

A

indirectly

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19
Q

what is a strong acid willing to do

A

give up a H

20
Q

what will equilibrium always favor

A

the formation of a weaker acid/base

21
Q

Lewis acids are what?

A

are electron pair acceptors

22
Q

Lewis bases are what?

A

are electron pair donors

23
Q

are all Brønsted acids/bases, Lewis acids/bases?

A

yes

24
Q

are all Lewis acids/bases, Brønsted acids/bases?

A

no

25
Q

Boron will always act like a what?

A

acid bc its p shell is always empty

26
Q

how many bonds does carbon usually have

A

four

27
Q

how many bonds does nitrogen usually have

A

three

28
Q

how many bonds does oxygen usually have

A

two

29
Q

how many bonds does halogens usually have

A

one

30
Q

acidity of carboxylic acid

A

3-5

31
Q

acidity of aromatic structures

A

10-11

32
Q

acidity of thiol

A

~13

33
Q

acidity of water

A

15.7

34
Q

acidity of alcohol

A

16-18

35
Q

what acidity does sp c have

A

~25

36
Q

what acidity does this have

A

20

37
Q

what acidity does sp2 c have

A

~45

38
Q

what acidity does sp3 c have

A

50-60

39
Q

what acidity does a amine have

A

36-40

40
Q

what is the order for acidity in increasing order

A

carboxylic acid
aromatic
thiol
water
alcohol
sp c
sp2 c
sp3 c
amine

41
Q

a solvent with no acidic/removable hydrogens

A

aprotic solvent

42
Q

a solvent with acidic/removable hydrogens

A

protic solvent

43
Q

what type of bonding do non polar compounds use

A

induced dipole

44
Q

what type of bonding does polar compounds use

A

dipole-dipole

45
Q

what atoms can be used in hydrogen bonding

A

F
O
N

46
Q

nonpolar

A

hydrophobic

47
Q

polar

A

hydrophilic