Question

What happens when you mix salt with water? What is this property called? What would happen if we use chalk powder instead of salt? Why? How can you classify materials based on this property? [5 MARKS]

Answer 1

Points: 1 Mark each

1. When salt is mixed with water, it dissolves in the water and disappears.
2. This property of dissolution of salt in water is called solubility.
3. If chalk powder was used instead of salt, it will not dissolve but will settle down as sediment after a while.
4. This is because chalk powder is insoluble in water.
5. Based on solubility, materials can be classified as either soluble or insoluble.