What do you mean by pure substance how would you confirm that a colourless liquid given to you is a pure water?
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Pure Substances
A pure substance is any single type of material that are made of only one type of atom or only one type of molecule. Also, a pure substance can be defined as any single type of material that has not been contaminated by another substance. In chemistry, a pure substance has a definite composition
A very easy solution is to take a sample of colourless liquid and put on stove if it starts boiling exactly at 100 ºC then it is pure water. Any other colourless liquid such as vinegar always have different boiling point. Also observe carefully that after some time whole liquid will convert into vapour without leaving any residue
A pure substance is any single type of material that are made of only one type of atom or only one type of molecule. Also, a pure substance can be defined as any single type of material that has not been contaminated by another substance. In chemistry, a pure substance has a definite composition
A very easy solution is to take a sample of colourless liquid and put on stove if it starts boiling exactly at 100 ºC then it is pure water. Any other colourless liquid such as vinegar always have different boiling point. Also observe carefully that after some time whole liquid will convert into vapour without leaving any residue
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Pure water is obtained by fractional distillation. It has only water molecules. By this we conclude purity of water.
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