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Chemistry 30 > Compounds & Molecular Structures > Flashcards

Compounds & Molecular Structures Flashcards

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1
Q

Ionic Bonds

A

Electrostatic force between oppositely charged particles

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2
Q

Crystal Lattice

A

The formation of large numbers of positive and negative ions existing together in a ratio

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3
Q

Disassociate

A

Break into ions

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4
Q

Electrolytes

A

Ions free to move in a solution and can conduct electricity well

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5
Q

Malleable

A

Able to be hammered into a thin sheet

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6
Q

Ductile

A

Able to be drawn out into a thin wire

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7
Q

Metallic Bonds

A

The attraction of a metallic cation for delocalized electrons

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8
Q

Alloy

A

A mixture of elements that have metallic properties

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9
Q

Covalent bond

A

A result of non metals sharing valence electrons

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10
Q

Molecule

A

Formed when 2 or atoms bond covalently.

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11
Q

Sigma bond

A

Electron pair is shared in an area centred between the 2 atoms

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12
Q

Pi Bond

A

When parallel orbitals overlap to share electrons

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13
Q

Multiple covalent bonds

A

Contains 1 sigma bond and at least 1 Pi bond

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14
Q

Bond length

A

Distance between nuclei

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15
Q

Bond disassociation energy

A

Amount of energy required to break a specific covalent bond

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16
Q

London dispersion forces

A

Weak force caused by temporary shifts of electron density in electron clouds between NON POLAR molecules

17
Q

DIPOLE DIPOLE

A

An attraction between positive and negative regions of POLAR MOLECULES

18
Q

Hydrogen Bonding

A

Dipole dipole attraction between hydrogen atoms and highly electronegative fluorine, nitrogen, and oxygen atoms

19
Q

Intermolecular

A

The weak forces of attraction between individual molecules

London dispersion, dipole dipole, hydrogen bonding

20
Q

INTRAMOLECULAR

A

Polar, non polar, ionic

Attractive forces

21
Q

Non-polar covalent

A

Symmetrical, equal sharing of electrons

22
Q

Polar covalent

A

Unsymmetrical, unequal sharing of electrons

23
Q

Ionic compounds

A
  • most are salts
  • exothermic reaction bc resulting compound is so stable
  • can conduct electricity while aqueous or liquid
  • high melting points
24
Q

PRACTICE LEWIS STRUCTURES FOR POLYATOMICS RIGHT NOW

A

5 NOW

25
Q

Do VSEPR model naming and stuff

A

Ya

26
Q

Linear

A
  • 180
  • 2 bonding pairs
  • no lone pairs
27
Q

Trigonal Planar

A
  • 120
  • 3 bonding pairs
  • no lone pairs
28
Q

Tetrahedral

A
  • 109.5
  • 4 bonding pairs
  • no lone pairs
29
Q

Trigonal Pyramidal

A
  • 107.3
  • 3 bonding pairs
  • 1 lone pair
30
Q

Bent

A
  • 104.5
  • 2 bonding pairs
  • 2 lone pairs

Chemistry 30 (4 decks)

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