Question

8. What do you mean by aqueous solution?
9. Why is souring of milk a chemical change?​

Answer 1

Answer:

An aqueous solution is the solution in which the solvent is water. It is the mostly show in chemical equation by appending (aq) to the relevant chemical formula.For example, a solution of table salt,sodium chloride (NaCl), in water would be represented as Na+(aq)+Cl-(aq).

Answer :2)

Souring milk result in a curdling,a physical reaction. Yet,chemically it changes because of increasing acidity .

the protein becomes denatured in the process and acid level increase changing the chemical composition.

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