Giant Covalent Bond Flashcards

1
Q

Examples

A

diamond, graphite, sand

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2
Q

Definition

A

Covalent bonded compounds with different properties

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3
Q

Giant covalent bonded molecules commonality

A

ALLOTROPES of carbon

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4
Q

Allotrope

A

Different forms of the same element. Atoms and physical state is kept the same but arrangement is different

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5
Q

Structure of diamond

A

Like a family tree with 3 branches starting with only one carbon

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6
Q

Properties of diamond

A

Doesn’t conduct electricity (all valence electrons are bonding)
Hardest natural substance because highest melting point at 3500 Celsius
insoluble in water

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7
Q

4 allotropes of carbon

A

Diamond
Graphite
Graphene
Coal

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8
Q

Structure of graphite

A

atoms for hexagons which layer on top of each other repeated millions of times

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9
Q

Properties of graphite

A

soft slippery
each carbon bonds to 3 carbons
conducts electricity because of 1 free electron
insoluble in water

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10
Q

Sand

A

Silicon dioxide (SiO<2)

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11
Q

Sand structure

A

Each silicon atom bonded with 4 oxygen atoms
Each oxygen atom bonded to 2 silicon atom
in a tetrahedron

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12
Q

Sand properties

A

hard
high melting and boiling points
not soluble in water (mud)
does not conduct electricity

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