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Chemistry > Topic 2 Bonding > Flashcards

Topic 2 Bonding Flashcards

1
Q

Molecular formula of these ions:
Hydroxide, Nitrate, ammonium, sulfate, carbonate

A

OH-, NO3 -,NH4 +, SO4 2-, CO3 2-

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2
Q

Why do ionic compounds dissolve

A

Water is polar so can attract positive and negative ions to break up the structure.

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3
Q

In what state are ionic compounds conductors and why

A

Liquid (molten or dissolved) as ions are free to move and carry charge

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4
Q

What determines strength of ionic lattices

A

Charge density (small highly charged are stronger)

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5
Q

Are double bonds stronger than single

A

Yes - higher electron density

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6
Q

Shape and bond angle with 2 bonding pairs

A

Linear 180

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7
Q

Shape and bond angle with 3 bonding pairs

A

Trigonal planar 120

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8
Q

Shape and bond angle with 4 bonding pairs

A

Tetrahedral 109.5

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9
Q

Shape and bond angle with 5 bonding pairs

A

Trigonal bipyramidal 90,120

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10
Q

Shape and bond angle with 6 bonding pairs

A

Octahedral 90

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11
Q

Shape and bond angle with 2 bonding pairs and 1 lone pair

A

Bent 118

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12
Q

Shape and bond angle with 3 bonding pairs and 1 lone pair

A

Pyramidal 107

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13
Q

Shape and bond angle with 2 bonding pairs and 2 lone pairs

A

Bent 104.5

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14
Q

Shape and bond angle with 4 bonding pairs and 1 lone pair

A

Distorted tetrahedral 88, 118

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15
Q

Shape and bond angle with 3 bonding pairs and 2 lone pairs

A

T shaped 88,178

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16
Q

Shape and bond angle with 5 bonding pairs and 1 lone pair

A

Square pyramidal 88,178

17
Q

Shape and bond angle with 4 bonding pairs and 2 lone pairs

A

Square planar 90,180

18
Q

What 4 things does metallic bonding strength depend on

A

Size of ion, charge of ion, number of delocalised electrons and charge density

19
Q

Three things required for a substance to dissolve

A
  1. Substance bonds must break
  2. Solvent bonds must break
  3. Bonds form between solvent and solute
20
Q

Give an example of an ionic compound that doesn’t dissolve

A

Al2O3

21
Q

Name 6 compounds that contain coordinate bonds

A
  1. NH4 +
  2. H3O +
  3. AlCl4 -
  4. Al2Cl6
  5. BNF6
    6.NO3 -

Chemistry (14 decks)

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