Question

potassium chloride is added to water and stirred.A salt solution is obtained which is then boiled leaving behind the residue.Name the residue which remains behind after the salt solution is boiled?

Answer 1

Potassium chloride is the salt . Simply because by adding water it mixes and on heating water evaporate out leaving the salt potassium chloride

Answer 2

When potassium chloride is added to water the residue that is left behind is  the white residue of potassium chloride.

• The change that takes place is a physical change and the is reversible .
• During the change, the properties and composition of the original substance are also not altered.
• By adding water the solution mixes and on heating water it evaporates out leaving behind the salt potassium chloride