Buffer solutions consist of an aqueous solution of a weak acid and its conjugate base or a weak base and its conjugate acid. Buffer solutions are used to have better control of the pH of solutions.
An example of a weak acid and its conjugate base is acetic acid (CH3COOH) and sodium acetate (CH3COONa).
Answer:
3, 1, 3, 1 is a required answer.
Dry ice is made with co2 and if you pour water over it smoke comes as the ho2 is reacting with the co2
