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Chemistry 110 > EXAM II > Flashcards

EXAM II Flashcards

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1
Q

Which atom is the Central Atom when drawing a Lewis structure?

A

It’s the Least Electronegative (Hydrogen is never CA, Carbon is almost always CA)

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2
Q

How to calculate the Formal Charge of an atom?

A

VE-LE-B (Valence Electron - Lone Electrons - Number of Bonds)

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3
Q

What is electron-pair delocalization?

A

When a double bond is spread over an entire molecule

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4
Q

How to calculate bond order?

A

(No. of bonding electrons - no. of anti-bonding electrons)/2

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5
Q

Octet rule holds mostly with which period?

A

Period 2

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6
Q

Electron deficient molecules examples?

A

Be: 4e
B: 6e

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7
Q

How to know if a molecule has an odd electron?

A

Add up the Valence Electrons

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8
Q

Expanded valence electrons occur in which periods mostly?

A

In P3 or higher

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9
Q

What to do when there’s the Central Atom is from P3 or higher?

A

You must check the Formal Charge to know if it should expand valence shells in the Central Atom.

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10
Q

What are most commonly used atoms that have expanded valence shells?

A

Sulfur, S: 12e

Phosphorus, P: 10e

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11
Q

What is the name of EDG of AX2 and it’s angles?

A

Linear.

180

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12
Q

What is the name of EDG of AX3 and it’s angles?

A

Trigonal Planar

120

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13
Q

What is the name of EDG of AX4 and it’s angles?

A

Tetrahedral

109.5

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14
Q

What is the MG of AX2E?

A

Bent
The angles are less than 120
Polar

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15
Q

What is the MG of AX2E2?

A

Bent
Less the 109.5 angle
Polar

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16
Q

What is the MG of AX3E?

A

Trigonal pyramidal
Less than 109.5 angle
Polar

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17
Q

What is the MG of AX4E?

A

Seesaw

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18
Q

What is the MG of AX3E2

A

T-shaped

Polar

19
Q

What us the MG of AX2E3?

A

Linear

20
Q

What is the MG of AX5E?

A

Square pyramidal

Polar

21
Q

What is the MG of AX4E2?

A

Square planar

22
Q

What is the MG of AX3E3?

A

T-shaped

Polar

23
Q

What is the MG of AX2E4?

A

Linear

24
Q

What’s the Hybrid Orbitals for 1ED?

A

s

25
Q

What’s the Hybrid Orbitals for 2ED?

A

sp

26
Q

What’s the Hybrid Orbitals for 3ED?

A

sp^2

27
Q

What’s the Hybrid Orbitals for 4ED?

A

sp^3

28
Q

What’s the Hybrid Orbitals for 5ED?

A

sp^3d

29
Q

What’s the Hybrid Orbitals for 6ED?

A

sp^3d^2

30
Q

IMF of ION-ION?

A

Opposite Charged ions (Ionic compounds)

31
Q

IMF of ION-DIPOLE?

A

Ion and a dipole molecule like water (aq)

32
Q

IMF of Hydrogen Bond?

A

A type of dipole-dipole, it’s hydrogen to N O or F

33
Q

IMF of Dipole-Dipole?

A

Polar with polar

34
Q

ion induced-dipole

A

Ion and nonpolar

35
Q

dipole induced-dipole

A

polar and nonpolar

36
Q

London Dispersion

A

nonpolar and nonpolar

37
Q

C-O-H

A

Alcohol

38
Q

O=C-O-H

A

Carboxylic acid

39
Q

C-O-C

A

Ether

40
Q

O=C-O-C

A

Ester

41
Q

C-N

A

Amine

42
Q

O=C-N

A

Amide

43
Q

O=C-H

A

Aldehyde

44
Q

O
ll
C – C – C

A

Ketone

Chemistry 110 (3 decks)

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