Apparatus: Test tube, conical flask, balance, etc.
Chemicals: Sodium chloride and silver nitrate.
Procedure:
i. Take sodium chloride solution in a conical flask and silver nitrate solution in a test tube.
ii. Tie a thread to the test tube and insert it carefully into the conical flask. Make the conical flask air tight by fitting a rubber cork.
iii. Weigh the conical flask with the help of a balance.
iv. Now tilt the conical flask and mix the solution present in the test tube with the solution in the conical flask.
v. Weigh the conical flask again.
Did any insoluble substance form?

Explanation

Yes, a white insoluble substance is formed.