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Chemistry 20 > Bonding Unit Final > Flashcards

Bonding Unit Final Flashcards

1
Q

whats the general formula for linear VSEPR shape

A

AX2

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2
Q

what’s the general formula for trigonal planar VSEPR shape

A

AX3

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3
Q

how many bond pairs and lone pairs in linear shape

A

2 bond pairs, 0 lone pairs

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4
Q

how many bond pairs and lone pairs in trigonal planar shape

A

3 bond pairs, 0 lone pairs

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5
Q

whats the general formula for tetrahedral VSEPR shape

A

AX4

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6
Q

how many bonding pairs and lone pairs in tetrahedral shape

A

4 bonding pairs, 0 lone pairs

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7
Q

whats the general formula for triagonal pyramidal VSEPR shape

A

AX3E

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8
Q

how many bonding pairs and lone pairs in triagonal pyramidal shape

A

3 bonding pairs, 1 lone pair

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9
Q

how many bonding pairs and lone pairs in bent shape

A

2 bonding pairs, 2 lone pairs

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10
Q

what’s the general formula for bent VSEPR shape

A

AX2E2

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11
Q

what’s the general formula for tetrahedral VSEPR shape

A

AX4

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12
Q

what does a difference less than 0.4 of electronegativity in elements indicate

A

the bond is slightly polar, but it doesn’t affect the shape of the molecule, so it is considered a nonpolar covalent bond

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13
Q

what does a difference between 0.4 and 1.7 in electronegativity in elements indicate

A

the bond is polar covalent

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14
Q

what does a difference in electronegativity greater than 1.7 indicate

A

the bond is ionic

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15
Q

what shape does AX2 make

A

linear

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16
Q

whats shape does AX3 make

A

trigonal planar

17
Q

what shape does AX4 make

A

tetrahedral

18
Q

what shape does AX3E make

A

trigonal pyramidal

19
Q

what shape does AX2E2 make

A

bent/angular

20
Q

4 main characteristics of a molecular compound

A

low melting points, generally soft, not conductive, not typically soluble

21
Q

4 main characteristics of ionic compound

A

high melting and boiling points, brittle, conductive, usually soluble

Chemistry 20 (8 decks)

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