Get premium membership and access revision papers with marking schemes, video lessons and live classes.

Processing. Please wait.

Hardness of water and the difference between pure water and impure water

Answer Text:
Hardness of Water
- Can be pure or impure
Pure water
- Is a pure substance which is a compound of hydrogen and oxygen; that boils at #100^oC#; melts at #0^oC# and has a density of #1gcm^(-3)# at sea
level.
Impure water
- Are the natural waters constituted of dissolved solutes in pure water.
Hardness of water
- Water without dissolved substances (salts) hence lathers easily with soap is referred to as soft water while water with dissolved substances that does not lather easily with soap is termed as hard water