✔ 最佳答案
１ NH3+ 要先DISSLOVE IN WATER
咁個SOLUTION先會有 NH4+ 同OH-
因為佢拆左水個bond 即係H2O個 covalent bond
咁就有一個水 ge molecule會拆做一個OH-同一個H+
H+會同NH3form bond 變做NH4
同埋你打果段equation要Zn in aqueous form先會同 aqueous NH3會reacton
form 一個insoluble ge precipitate
應該唔洗用equation ezplain掛?
順便講講...唔係所有NH3會溶響水只有部份會溶...
所以佢係一個ｗｅａｋ ａｌｋａｌｉ
２其實唔係好明你問乜...
基本上除左potassium sodium同ammonia compound唔會同aqueous ammonia 有reaction
至於redisslove就應該 zinc(II) hydoxide同 copper(II) hydroxide會law
佢地會form 一個complex ion
３第３題．．．
應該唔係所有ｂａｓｅ都會同ammonium compound 有reaction
只有soluble base...即係alkali先會有reaction
果ｄ ｂａｓｅ可以係
sodium hydroxide,potassium hydroxide,calcium hydroxide同aqueous ammonia
首先以NH4Cl同sodium hydroxide就例子
NH4Cl(aq) ＋NaOH(aq) ----------------> H2O(l) ＋NaCl(aq) ＋ NH3(g)
拆開晒佢做ｉｏｎ 先
NH4 + ＋ Cl - ＋ Na + ＋OH- --------------------------->H2O(l)＋Na + ＋Cl -＋NH3(g)
只有aqueous form ge compound form ge compound先可以拆開做ion
再將相同ge ion拎走
ionic equation 變成
NH4 + ＋OH - ---------------------------->H2O(l)+NH3 (g)
所以理論上...進行緊reaction的就只有ammoium ion 同 hydroxide ion
即係話只要有單一個ammonium ion又好
ammonium compound又好...都可以進行reaction好give salt,water and ammonia gas
順便又講...
如果個ammonium compound係in solid form
你就要heat 個reaction mixture先會有化學反應
