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Copper is a metal, it therefore has delocalised electrons, i.e. e- which have come away from the atom, which can move through the solid metal allowing it to conduct heat and electricity. Other properties ...

Crude oil is separated into fractions in a process called fraction distillation. The crude oil mixture is separated in a distillation column. The column is hot at the bottom and cool at the top. Fractiona...

Mix with bromine water (orange), if a double bond is present (alkenes) then the bromine water will be decolourised.

Distillation is a process used to seperate a liquid from a mixture of different liquids. It works on the basis that liquids have different boiling points. A common example is ethanol and water. The liquid...

Crude oil is separated by fractional distillation. Crude oil is heated to vaporize the different hydrocarbons in a tank which is cool at the top and hot at the bottom. The vapours then rise and the differ...