Bonding and Structure

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  • Created by: Angèle
  • Created on: 21-04-17 17:16
Are compounds chemically bonded?
Yes
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Is ionic bonding transferring or sharing elections?
Transferring
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Is covalent bonding transferring or sharing elections?
Sharing
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What structure do ionic compounds have?
A regular lattice structure.
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What properties do ionic compounds have?
Hight melting points, strong attraction between oppositely charged ions, when ionic compounds melt the ions are free to move so will carry electricity, dissolve in water easily.
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What are the two kinds of covalent substances?
Simple molecular substances and giant covalent structures.
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What are the properties of simple molecular substances? (5)
Very strong covalent bonds to form small molecules of several atoms, forces of attraction between these molecules are very weak, have low melting and boiling points, most are gases or liquids at room temp, don't conduct electricity.
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What are the properties of giant covalent structures? (3)
All atoms are bonded by strong covalent bonds, very high melting and boiling points, don't conduct electricity (bar graphite).
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Examples of giant covalent structures: (3)
Diamond, graphite, silicon dioxide.
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What is a nano particle?
A particle between 1 and 100 nanometers in size.
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Why could nano particles help make new industrial catalysts?
As they have a huge surface area to volume ratio.
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How can nano particles be used? (4)
Industrial catalysts, nanotubes for lighter and stronger building materials, new cosmetics e.g. deodorant, nanomedicine.
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Other cards in this set

Card 2

Front

Is ionic bonding transferring or sharing elections?

Back

Transferring

Card 3

Front

Is covalent bonding transferring or sharing elections?

Back

Preview of the front of card 3

Card 4

Front

What structure do ionic compounds have?

Back

Preview of the front of card 4

Card 5

Front

What properties do ionic compounds have?

Back

Preview of the front of card 5
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