鹽有無分酸鹼???

Acid+Alkali --- salt+ water


when an acid and an alkali react, a salt is formed. Salts are a group of chemicals produced by neutralization.

e.g. Hydrochloric acid + Sodium hydroxide ------ sodium chloride + water

sodium chloride = salt

食鹽的水溶液，pH 值是 7，是中性的溶液。

食鹽呈中性，是因為食鹽中的鈉離子和氯離子均與水不起反應。