Covalent vs Ionic structures

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  • Created by: a.bell
  • Created on: 26-10-15 20:23
Why do ionic compounds have high melting and boiling points?
There are strong forces of attraction between the oppositely charged ions.
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How is an ionic compound arranged?
In a giant lattice structure.
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Can ionic compounds conduct electricity?
Only when dissolved or molten because the ions are then free to move.
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Why are most covalent compounds gases?
They have very low boiling points as there are weak intermolecular forces.
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Can covalent compounds conduct electricity?
No, there are no free electrons.
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Name two giant covalent substances...
Diamond and graphite
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What are the 5 properties of a giant covalent substance?
Extremely hard but brittle, unreactive when solid, doesn't dissolve in water, extremely high melting points, doesn't conduct electricity.
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Other cards in this set

Card 2

Front

How is an ionic compound arranged?

Back

In a giant lattice structure.

Card 3

Front

Can ionic compounds conduct electricity?

Back

Preview of the front of card 3

Card 4

Front

Why are most covalent compounds gases?

Back

Preview of the front of card 4

Card 5

Front

Can covalent compounds conduct electricity?

Back

Preview of the front of card 5
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