When testing a pure substance for its properties, some of the test result in the sample of being changed into another substance. Testing for which of these properties. May result in the sample substance being changed into a different substance

Solubility because when you have to test for it you need to add another liquid to the pure substance and that may cause a chemical change

if the concentration of products is decreased, the equilibrium will shift toward the products). add an inert gas (one that is not involved in the reaction) to the constant-volume reaction mixture: this will increase the total pressure of the system, but will have no effect on the equilibrium condition.

explanation: