Chemistry Additional- Covalent bonding

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  • Created by: Harriet
  • Created on: 01-12-14 18:57
What is covalent bonding?
Where atoms share electrons so they get a full outer shell
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What are two types of covalent substances?
Simple molecular substances and giant covalent structures
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What do chlorine, oxygen and water all have in common?
They are simble molecular substances and have very weak intermolecular forces.
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What is an effect of weak intermolecular forces?
Low melting and boiling points as the molecules are easily parted from each other.
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Can molecular substances conduct electricity? Why?
No because there are no ions so there's no electrical charge
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What are diamond, silicon dioxide and graphite otherly known as?
Macromolecules
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What are the boiling and melting points like for macromolecules? Why?
They are very high because the atoms are bonded to each other by strong covalent bonds
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Why don't giant covalent structures conduct electricity? Which is the exception?
Because there are no charged ions. Graphite however does conduct electricity when molten.
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Other cards in this set

Card 2

Front

What are two types of covalent substances?

Back

Simple molecular substances and giant covalent structures

Card 3

Front

What do chlorine, oxygen and water all have in common?

Back

Preview of the front of card 3

Card 4

Front

What is an effect of weak intermolecular forces?

Back

Preview of the front of card 4

Card 5

Front

Can molecular substances conduct electricity? Why?

Back

Preview of the front of card 5
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