In an acid–base reaction, the original acid gives up its proton to become a conjugate base. In other words, after losing its proton, the remaining ion is capable of gaining a proton, thus qualifying as a base. The original base accepts a proton, so it now is classified as a conjugate acid since it can release this newly acquired proton and thus behave like an acid.
為甚麼酸lose its 質子 剩下的離子能夠gain質子???(黃色那句)