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  1. ...there are Mg2+ and SO4^2-. When they mix together, no precipitate is formed (CuSO4 and MgCl2 are all soluble in...

  2. (1) All of them will precipitate with calcium hydroxide solution. For (1), calcium ... (3), no observable change for sodium chloride but white precipitate formed for zinc nitrate. Ans: (1), (2) and (3...

  3. ...+ (aq) + 3OH- (aq) ---> Al(OH)3(s) ( White precipitate ) (2) : No. Acid can only possess acidic properties when it...

  4. ...3) When AgNO3 is added to a solution and a white precipitate results, the solution contains Cl- ions. Since...

  5. ... with aqueous sodium hydroxide. The one which gives a jelly-like white precipitate is zinc nitrate solution. Zn + ( 2OH-) ---> Zn(...

  6. ... it contains CO32- ions, then you can see a white precipitate ( MgCO3 ), i.e. Mg2+ (aq) + CO32- (aq) --> MgCO3...

  7. ...點解無左個+ 仲有,如果你個ammonium solution的anion是會同zinc or calcuim ions precipitate 的話,都會有reaction的。

  8. ..., calcium ion reacts with sulphate ion to give white precipitate of calcium sulphate, while hydrochloric acid has no such observation. 3...

  9. ...5)有咩嘢溶咗? e.g. zinc dissolves in dil. hydrochloric acid 6)有冇ppt( precipitate )? 7)有ppt的話,ppt 咩色? 8)有ppt的話,如果可以寫埋ppt的特徵會更好...

  10. ... no. of mole of MgCO3, the greatest amount of MgCO3 precipitate produced. For(A) No. of mole of K2CO3=(15...