IB Chemistry: Physical Properties

IB Chemistry: Physical Properties

Compare and explain the properties of substances resulting from different types of bonding

Ionic Bonding

• Conduct Electricity in liquid state
• Some are soluble in water. E.g. Sodium Chloride. Some aren’t; e.g. Silver Chloride
• High Melting Points and Boiling points

Simple Covalent Bonding

• Volatile
• Low melting and boiling points

Giant Covalent

• High melting point (graphite’s is around 3730 Celsius)
• High boiling points
• Insoluble in water (but may react and form ions)
• Non-polar Solvents
• Good conductor of electricity.
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Dipole: dipole bonding

• Melting point and boiling points are higher than for non-polar substances with the same molecular mass.
• Miscible with water and non-polar solvents
• Non Conductor of electricity.

Van der Waals’

• Low melting points
• Low Boiling points
• Insoluble in Water
• Soluble in non-polar solvents
• Non-conductor of electricity
• Literally the same as Simply Covalent Bonding.

Metallic Bonding

• High melting points and boiling points
• Insoluble in water
• Good conductors of electricity.

Hydrogen Bonding

• Boiling points higher than dipole:dipole bonded substances with a similar Molecular mass.

• Miscible with water and non-polar solvents
• Doesn’t Conduct Electricity.