... attract together to form a soluble compound, the ions will then separate and no precipitate is formed. If cations and anions attract together...
There are so many precipitates . Only the precipitates (insoluble in... - white PbSO4 - white Nitrates: no precipitate Chlorides: PbCl2 - white (soluble in hot...
The precipitate of chromium(III) carbonate can be obtained by adding a solution...
The precipitates of amphoteric hydroxides can be re-...aq) → [Pb(OH)4]^2-(aq) The precipitates of some insoluble hydroxides or oxides...
NH3係一隻弱鹼，佢會slightly ionize in water NH3 + H2O <=> NH4+ + OH- 之後 Fe2+ + 2OH- => Fe(OH)2
The blue precipitate is copper(II) hydroxide. The blue precipitate ... will react with the hydroxide ions to give a blue precipitateof copper(II) hydroxide. Cu^2+(aq) + 2OH^-(aq...
The precipitate is not yellowish-brown. Actually, the solution changes from... can even evaporate to cause the nasty smell. The colourless precipitate is C6H2Br3OH, which is only slightly soluble in water.
咦. 我所讀的化學顯示, 他們是有 precipitate 的. ions contained in ammonia solution: NH4+ and OH...)2 only. Therefore, solution cantaining Ca2+ give white precipitate with ammonia solution.
OH- ion is movable in aqueous solution, it will form bond with metals ions eg. A solution contains K+, Mg2+, Fe2+, Fe3+ ions, when you added NaOH drop by drop. The OH- ion will bond with Na...
copper 2 sulfate - blue sodium hydroxide - white lead 2 sulfate - white manganese 4 oxide - black potassium permanganate - dark purple calcium oxide - white iron 2 oxide - black
