Question

Identify at least five pure substance around in media based on appearance separating techniques boiling and melting points

Answer 1

melting point is the temperature at which a solid changes into a liquid

boiling point is the temperature at which a liquid changes into a gas

pure substance have specific melting and boiling points mixtures melt and boil over a range of temperatures

melting point temperature at which the solid and liquid forms a pure substance can exist in liquid Helium as heat is applied to a solid its temperature will increase until the melting point is reached more heat than will convert the solid into a liquid with no temperature change when all the solids has melted additional heat will raise the temperature of the liquid the melting temperature of crystalline solid is a characteristic figure and is used to identify pure compounds and elements most mixers and a m o r p h o u s solid melt over a range of temperatures