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CHEM 1110 > PFAs > Flashcards

PFAs Flashcards

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1
Q

How long do PFAs stay?

A

forever

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2
Q

What are the structures of PFAs?

A

hydrogens on a carbon chain are replaced by fluorines

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3
Q

How many covalent bonds and how many electrons are shared in a single line?

A

1 covalent bond, 2 electrons shared

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4
Q

How many covalent bonds and how many electrons are shared in a double line?

A

2 covalent bonds, 4 electrons shared

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5
Q

How many covalent bonds and how many electrons are shared in a triple line?

A

3 covalent bonds, 6 electrons shared

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6
Q

How many bonds does carbon always form in a chain?

A

4

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7
Q

How are electrons shared in a pure (nonpolar) covalent bond?

A

equally

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8
Q

How are electrons shared in a polar covalent bond?

A

unequally

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9
Q

How are electrons shared in an ionic bond?

A

electrons are transfered

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10
Q

Is there any sharing of electrons in an ionic interaction?

A

no sharing at all

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11
Q

Like dissolves

A

like

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12
Q

What do polar molecules interact with?

A

other polar molecules

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13
Q

Will nonpolar molecules interact with polar molecules?

A

no

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14
Q

Is water a polar molecule?

A

yes, covalent compound with polar covalent bonds

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15
Q

What governs if a substance will interact with water?

A

If that substance is similarly polar

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16
Q

The longer the chain…

A

the more solid it will be

17
Q

Are lipids nonpolar or polar?

A

almost entirely nonpolar, they are water-fearing and hydrophobic

18
Q

What is the phospholipid bilayer?

A

The human body can generate membranes/micelles that are hydrophilic on the outside, hydrophilic tails in between two hydrophilic heads

19
Q

What is the condensed structural formula of methanol, number of carbon atoms, and solubility in water?

A

CH3-OH
1
soluble

20
Q

What is the condensed structural formula of ethanol, number of carbon atoms, and solubility in water?

A

CH3-CH2-OH
2
soluble

21
Q

What is the condensed structural formula of 1-propanol, number of carbon atoms, and solubility in water?

A

CH3-CH2-CH2-OH
3
soluble

22
Q

What is the condensed structural formula of 1-butanol, number of carbon atoms, and solubility in water?

A

CH3-CH2-CH2-CH2-OH
4
slightly soluble

23
Q

What is the condensed structural formula of 1-pentanol, number of carbon atoms, and solubility in water?

A

CH3-CH2-CH2-CH2-CH2-OH
5
insoluble

24
Q

What do amino acids fold into?

A

proteins in aqueous environment

25
Q

What are amino acids categorized by?

A

their side chains

26
Q

How often are nonpolar amino acids exposed to the polar aqueous environment in a folded globular protein?

A

rarely

CHEM 1110 (24 decks)

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