Ammonium solution +CUSO4 very easy

Question

CuSO4先係excess

比條完整chemical formula我...

除左變plae blue

比多個observation change 我

更新:

除左變plae blue係指有pale blue ppt

除左呢樣仲有咩...

Answer 1

最愛解答

Chemical equation:

2NH4OH (aq) + CuSO4 (aq) → Cu(OH)2 (s) + (NH4)2SO4 (aq)

Ionic equation:

2OH- (aq) + Cu2+ (aq) → Cu(OH)2 (s)

Observations:

1. Pale blue precipitate is formed. [Cu(OH)2(s), copper (II) hydroxide]

2. The colour of the blue solution fades. (Because the concentration of copper (II) ions decrease.)

3. Heat is evolved. (This is a precipitation reaction, it is exothermic.)

資料來源： Myself~~~

Answer 2

除o左出 blue ppt，blue colour of the solution becomes paler.

資料來源： My Chemistry knowledge

Answer 3

2NH4OH(aq)+CuSO4(aq)------》(NH4)2SO4(aq)+Cu(OH)2(s)

會有blue ppt出黎......

資料來源： me