Why do giant covalent structures have high melting
- The bonds are strong.
- A lot of energy is needed to break the bonds.
- All the atoms are joined by covalent bonds.
- A large number of bonds would need to be broken.
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Explain, in terms of molecules, why propane has a
- There are intermolecular forces/bonds between the molecules.
- These bonds/forces are weak.
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Explain how metals conduct electricity.
- There are outer shell electrons in metals.
- These electrons are delocalised.
- The electrons are free to move around.
- The electrons can carry charge/current.
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