sodium carbonate+hydrocloric acid

2008-05-08 3:51 am
Na2CO3 (aq) + HCl (aq) --) NaHCO3 (aq) + NaCl (aq)

係米中和作用?why?

回答 (3)

2008-05-12 9:36 pm
✔ 最佳答案
Neutralization is the process by which acid reacts with base to form salt and water as the product ONLY.
i.e. acid + base ---) salt + water

Your equation should be :
Na2CO3 (aq) + 2 HCl(aq) ---) 2 NaCl(aq) + H2O(l) + CO2 (g)
i.e. salt + acid ---) salt + water + gas

So, it is not neutralization.
參考: me
2008-05-12 1:13 am
條equation應該係Na2CO3(aq)+2HCl(aq)-->2NaCl(aq)+CO2(g)+H2O(l)
so,係中和作用
2008-05-08 4:06 am
唔係,因為無水形成
中和反应是化学反应中复分解反应的一种,是指酸和碱互相交换成分,生成盐和水的反应,在中和的過程中,酸裡的氫離子和碱中的氢氧根离子會結合成水。



收錄日期: 2021-04-18 15:51:16
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080507000051KK02237

檢視 Wayback Machine 備份