cccc 發問於 科學及數學化學 · 1 十年前

Ammonium solution +CUSO4 very easy

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...

3 個解答

評分
  • 1 十年前
    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~~~
  • 1 十年前

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

    資料來源: My Chemistry knowledge
  • 1 十年前

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

    會有blue ppt出黎......

    資料來源: me
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