Explain how you can determine the acidity of a substance and use real life examples to support your answer

BY CHECKING IT'S PHYSICAL AND CHEMICAL PROPERTY THAT ACID ARE SOUR IN TASTE AND IT CHANGES LITMUS PAPER BLUE TO RED AND THEIR CHEMICAL REACTION ACID + METAL->SALT AND HYDROGEN GAS AND YOU SEE MANY REACTION OF ACID AND BASE IN 2 CHAPTER OF CLASS 10 NCERT

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation:

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: