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CHM 109 > Checkpoint 4 > Flashcards

Checkpoint 4 Flashcards

1
Q

A bond in which 2 electrons are shared by 2 atoms

A

Covalent bonds

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2
Q

Pairs of electrons localized on one atom

A

Lone pair

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3
Q

Pairs of electrons shared between atoms

A

Bonding pairs

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4
Q

As the number of bonds increase, bond energy ____

A

Increases

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5
Q

As the number of bonds decrease, bond length _____

A

Decreases

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6
Q

Electrons are negatively charged and therefore repel each other. Distances between electron pairs are maximized

A

VSEPR Theory

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7
Q

How is the number of bonding pairs determined?

A

How many elements are bonded to the central atom

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8
Q

Multiple bonds make a ____ distance

A

Shorter

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9
Q

How are the number of lone pairs determined?

A

How many pairs of atoms are attached to the central atom

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10
Q

What is correlated to bond angle?

A

Total number of electron areas

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11
Q

How do you find the total electron area?

A

Bonding area + lone pairs

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12
Q

How do you determine electron pair geometry?

A

Total electron areas

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13
Q

How do you determine the molecular geometry?

A

Bonding areas

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14
Q

Electrons are not shared equally in a covalent bond

A

Polar covalent

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15
Q

Electrons are shared equally in a covalent bond

A

Nonpolar covalent

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16
Q

What is the trend of electronegativity on the periodic table?

A

Left to right increases, up and down decreases

17
Q

When dipoles cancel out it is (polar or nonpolar)

A

Nonpolar

18
Q

When dipoles do not cancel out it is (polar or nonpolar)

A

Polar

19
Q

If the molecule is symmetric it is usually (polar or non polar)

A

Nonpolar

20
Q

If the molecule is nonsymmetric, it is usually (polar or non polar)

A

Polar

21
Q

Only contains carbon carbon single bonds

A

Alkanes

22
Q

Contains at least one carbon carbon double bonds

A

Alkenes

23
Q

Contains at least one carbon carbon triple bonds

A

Alkynes

24
Q

Organic compounds that contain an -OH group

A

Alcohol

25
Q

Organic compounds that contain a -COOH group

A

Carboxylic acid

26
Q

Two hydrocarbons are bonded in an oxygen atom

A

Ether

27
Q

Organic compounds that contain a -CONH2 group

A

Amides

28
Q

Method of describing the delocalized electrons in some molecules where the bonding cannot be explicitly expressed by a single Lewis structure

A

Resonance

CHM 109 (6 decks)

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