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GCSE > Types Of Substance > Flashcards

Types Of Substance Flashcards

1
Q

State the structure and bonding in hydrogen gas

giant ionic, molecular covalent, giant covalent, giant metallic

A

Molecular covalent

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2
Q

State the structure and bonding in hydrogen chloride gas

giant ionic, molecular covalent, giant covalent, giant metallic

A

Molecular covalent

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3
Q

State the structure and bonding in water

giant ionic, molecular covalent, giant covalent, giant metallic

A

Molecular covalent

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4
Q

State the structure and bonding in diamond

giant ionic, molecular covalent, giant covalent, giant metallic

A

Giant covalent

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5
Q

State the structure and bonding in sodium chloride

giant ionic, molecular covalent, giant covalent, giant metallic

A

Giant ionic

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6
Q

State the structure and bonding in magnesium bromide

giant ionic, molecular covalent, giant covalent, giant metallic

A

Giant ionic

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7
Q

Why do IONIC substances have high melting and boiling points?

A

Strong electrostatic attraction between IONS

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8
Q

Why do IONIC substance conduct electricity when melted or dissolved?

A

IONS can move

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9
Q

Why don’t IONIC substances conduct as solids?

A

IONS can’t move in solids

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10
Q

Why do MOLECULAR substances have low melting and boiling points?

A

Weak forces BETWEEN MOLECULES

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11
Q

Why don’t molecular substances conduct electricity?

A

No charged particles to move and carry the charge

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12
Q

What element are graphite and diamond made from?

A

Both carbon

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13
Q

Why can diamond be used as a cutting tool?

A

It’s very hard

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14
Q

Describe the structure of a diamond

A

Each carbon is covalently bonded to 4 other carbons

In a giant lattice

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15
Q

Describe the structure of graphite

A

Each carbon is joined to 3 others
To for layers of carbons
With delocalised electrons between them

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16
Q

Why can graphite conduct electricity?

A

Delocalised electrons

Can move

17
Q

Why can graphite be used as a lubricant?

A

The layers

Can slide past each other

18
Q

Describe the structure of the fullerene C 60 ( Buckminster fullerene)

A

60 carbon atoms joined together in a football shaped molecule
Each carbon atom joined to 3 others

19
Q

What are polymers?

A

Long chains hydrocarbons with repeating sections

Used as plastics

20
Q

Describe the structure of metals

A

Positive metal ions (cations)

Surrounded by delocalised electrons

21
Q

Why can metals conduct electricity?

A

Delocalised electrons

Can move

GCSE (6 decks)

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