Question

Explain how, breaking of glass, making salt solution and the case of chalk dust and chalk stick are example of physical changes . pls answer​

Answer 1

Answer:

it is sugar this is the answer

Answer 2

Answer:

Physical change is the change which is reversible or which can be reversed to their original state

Explanation:

Breaking of glass is a physical change because after a glass has broke the glass remains in it original state and doesn't change to any other form

Making salt solution is a physical change because the salt can be retrieved by heating the salt solution

The case of chalk dust and chalk stick is the same as breaking of glass i.e the chalk only changes to its powdered form.