我想問ge係食鹽(氯化納)..
佢係酸定鹼?定中性?
2007-04-15 17:40:25 · 2 個解答 · 發問者 濠 2 in 科學 ➔ 化學
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
2007-04-16 09:02:45 · answer #1 · answered by Remelody 4 · 0⤊ 0⤋
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。
2007-04-15 17:44:37 · answer #2 · answered by Uncle Michael 7 · 0⤊ 0⤋