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Chemistry > Covalent Bonding > Flashcards

Covalent Bonding Flashcards

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1
Q

Covalent bonding is formed by…

A

Sharing a pair of electrons between two atoms

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2
Q

There are … Forces between the bonding pair of electrons and the (positive) nuclei of the atoms involved

A

Strong electrostatic

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3
Q

The reactants are…

A

Non metals

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4
Q

The term … Goes with covalent bonding

A

Molecule

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5
Q

Simple Molecular Structures are…

A

Gases, liquids or solids

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6
Q

Simple Molecular Structure have … Melting points

A

Low

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7
Q

The covalent bonds between the atoms in a molecule are …

A

Strong

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8
Q

The forces of attraction between molecules in a simple molecular structure are…

A

Weak

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9
Q

They are … In water and … In organic solvents

A

Insoluble in water and soluble in organic solvents

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10
Q

Simple molecular structures … Conduct electricity

A

Do not conduct electricity as the molecules have no overall charge and there are no electrons mobile enough to move from molecule to molecule

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11
Q

Giant covalent structures have … Charged ions

A

No charged ions

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12
Q

All the atoms in a giant covalent structure are … By … And packed into …

A

Are joined up to their adjacent atom by extremely strong covalent bonds and packed into giant regular lattices

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13
Q

Giant covalent structures have … Melting points

A

Very high melting points as a lot of energy is needed to provide the energy to break apart the many strong covalent bonds

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14
Q

Giant covalent structure are … In water

A

Insoluble in water

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15
Q

Giant covalent structures … electricity

A

Do not conduct electricity

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16
Q

Diamond is the … Natural substance

A

Hardest

17
Q

Diamond is pure…

A

Carbon

18
Q

Each carbon atom in diamond forms … Bonds to other carbon atoms

A

Four covalent bonds

19
Q

Carbon atoms are arranged in a…

A

Tetrahedral arrangement

20
Q

Diamond has a .. Melting point

A

very high melting point

21
Q

Diamond … Electricity

A

Does not conduct

22
Q

Diamond is … In water and organic solvents

A

Insoluble

23
Q

Diamond can be used on…

A

Saw blades (tipped)

24
Q

Graphite has a … Structure

A

Layer

25
Q

Each graphite layer is …. But it is easy to separate …

A

Strong, but it is easy to separate the individual graphite layers

26
Q

Graphite … Electricity

A

Does conduct electricity, as the fourth electron is free to move around

27
Q

Graphite can be used as…

A

A dry lubricant

Chemistry (18 decks)

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