更新1:
回：感冒唔駛食藥，飲盒仔茶就得啦..........................na2co3唔係鹼.唔係中和作用
更新2:
source:http://hk.knowledge.yahoo.com/question/?qid=7006032400605
更新3:
回Lovage:HCL+NH3=NH4CL......this reaction doesnt produce gas!!
有咩酸同咩鹼中和後會產生氣體...要在室溫
回答 (2)
2007-02-20 10:43 pm
✔ 最佳答案
不會有的!中和作用neutralization
的定義是酸(acid)和鹼(alkali)產生化學作用(chemical reaction)後
只會有水(water)及鹽(salt)<---不是氯化鈉(sodium chloride)
word equation係
acid + alkali -----> water + salt
應該沒有salt在室溫情況下是氣體吧
salt係ionic compound所以melting point 會低 d
就係咁la~
2007-02-20 6:52 pm
以我所知，只有氨化合物(ammonium compound)跟酸中和才會產生氣體，那是氨氣(ammonia)。
Concerning the reaction of an acid with a base which produces carbon dioxide, it is better for you to quote the source for me to have a look.
Regarding "2HCl + Na2CO3 → 2NaCl + H2O + CO2", I heard that some people also regard this reaction as a neutralization. Nonetheless, strictly speaking, it is wrong.
Concerning the reaction of an acid with a base which produces carbon dioxide, it is better for you to quote the source for me to have a look.
Regarding "2HCl + Na2CO3 → 2NaCl + H2O + CO2", I heard that some people also regard this reaction as a neutralization. Nonetheless, strictly speaking, it is wrong.
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070220000051KK00694