How would you confirm that a colorless liquid given to you is pure water?

To prove the colorless liquid is pure water:

By finding the boiling point of a given colorless liquid. If the liquid boils at 100°C at  atmospheric pressure, then it is pure water. This is because pure substances have a fixed melting and boiling point.  

[Extra information: Matter can be broken down into two categories: pure substances and mixtures. 

Pure substances are further broken down into elements and compounds.
Examples: Gold, Oxygen, Nitrogen

An element is a pure substance, which is made up of only one kind of atoms. It cannot be further reduced to simpler substances by any physical or chemical methods. An atom is the smallest unit of an element. Elements are classified into metals, non-metals, metalloids and noble gases. Example: Carbon

A compound is a pure substance that consists of two or more elements combined chemically in a fixed proportion by weight and can be broken down into elements by chemical methods only. Example: Sodium chloride (NaCl)]


Simply Easy Learning

Updated on: 19-Jan-2023


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