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A compound consists of two or more elements that are mixed chemically.
It will form a new substance and has its own characteristics.
For example, chalk, marble, polythene and water.
Water is a compound which is a combination of hydrogen and oxygen.
It cannot be separated by the 7 mixture separation methods, but to use electrolysis(chemically method) to separate the hydrogen and oxygen in water.
There are few examples of metal and non-metal elements combine chemically to form a new substance which is a compound.
Methods to Separate Compounds
Methods to Separate Compounds
A compound can only be separated chemically by electrolysis.
Electrolysis is a chemical decomposition of a compound by passing an electric current through the compound.
Electrolysis
Electrolysis
This process produces hydrogen gas at the negative electrode (cathode) and oxygen gas at the positive electrode (anode).
Differences Between Physical and Chemical Changes
Differences Between Physical and Chemical Changes
Comparisons Between Physical Change and Chemical Change
Comparisons Between Physical Change and Chemical Change
Differences Between Mixtures and Compounds
Differences Between Mixtures and Compounds
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