Consider a buffer solution made from acetic acid $($CH$3$CO$2$H$)$ and sodium acetate $($NaCH$3$CO$2).($a$)$ Write the chemical reaction that occurs when a strong acid such as HCl is added. Omit states of matter. $($b$)$ Write the chemical reaction that occurs when a strong base such as NaOH is added. Omit states of matter.