我想問ge係食鹽(氯化納)..
佢係酸定鹼?定中性?
鹽有無分酸鹼???
2007-04-16 5:40 am
回答 (2)
2007-04-16 9:02 pm
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
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
參考: book name: LIVING SCIENCE(SECOND EDITION) ------- OXFORD
2007-04-16 5:44 am
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。
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。
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