15.(14分)某氯化铅渣中含PbCl2和少量AgCl、CuCl2等物质,分步回收其中金属元素的工艺如下:滤渣2Pb滤渣!氨水Ag1试剂 A、 NaSO溶液氯化铅渣I滤液2Ⅲ滤液!CuS滤液3已知:物质PbCl2PbSO CuS AgCl Ag⋅SO_4 K1.6*10^(-5) 1.7*10^(-8)6.0*10^(-36) 1.8*10^(-10) 1.6*10^(-5) (1)已知
Pb+CuCl2toPbCl2+Cu , বিক্রিয়াটি হল - 03:35 Which of the following substances are paramagnetic? Al, Bi, Cu, Ca, Pb... 01:20 In the reaction Pb(s)+Cu^(2+) (aq) rarr Pb^(2+) (aq)+Cu(s) which is re... 02:10 Zn, Mo, Fe, Cu হ...
目前用乙烯制乙醛的过程分三步进行:①CH2==CH2+PbCl2+H2OCH3CHO+2HCl+Pb②Pb+2CuCl2PbCl2+2CuCl③2CuCl+O2+2HCl
Balance any equation or reaction using this chemical equation balancer! Find out what type of reaction occured. Read our article onhow to balance chemical equationsor ask for help in ourchat. Balance Pb + Cl = Cl2Pb Using the Algebraic Method ...
CuCl2(aq)→ Cu2+(aq)+2Cl-(aq) Pb(s)+ Cu2+(aq)+2Cl-(aq)= PbCl2(s)+ Cu(s) Spectator Ions Spectator ions are ions that do not take part in the reaction. They are removed from the complete ionic equation to get the net ionic equation. ...
1 乙烯直接氧化法制乙醛的总反应方程式为2CH2=CH2+O2\underrightarrowPbCl2−CuCl2CH3CHO.现有人将该反应设计成如图所示的燃料电池,下列有关说法正确的是()负载h CH.H-O02含磷酸溶液CHCHO玻璃纤维HOa」顶截】hH-O' 同 1 磷酸溶液HoCH-CHO'玻璃纤维 A. 该电池可实现化学能与电能之间的相互转化 B. 电子移动...
已知:①浸出液中除含过量盐酸和SbCl5之外,还含有SbCl3、PbCl2、AsCl3、CuCl2等; ②常温下:Ksp(CuS)=1.27×10-36 , Ksp(PbS)=9.04×10-29; ③溶液中离子浓度小于等于1.0×10-5mol·L-1时,认为该离子沉淀完全。(1)滤渣1中除了S之外,还有1(填化学式)。 【答案】 (2)“浸出”时,Sb2S3发生反应的...
解答解:①CH2=CH2+PdCl2+H2O→CH3CHO+2HCl+Pd ②Pd+2CuCl2=PdCl2+2CuCl的反应中 ③2CuCl+1/2O2+2HCl=2CuCl2+H2O 将方程式①+②+③得CH2=CH2+1212O2=CH3CHO,该反应中氧气是氧化剂,乙烯是还原剂; A.乙烯是还原剂,PdCl2是催化剂,故A错误;
17.PbO2、KMnO4、Cl2、FeCl3、CuCl2的氧化性依次减弱.下列反应在水溶液中不可能发生的是( ) A.Cu+2Fe3+═Cu2++2Fe2+ B.10Cl-+2MnO4-+16H+═2Mn2++5Cl2↑+8H2O C.2Fe2++Cl2═2Fe3++2Cl- D.5Pb2++2MnO4-+2H2O═5PbO2+2Mn2++4H+ ...
A series of ternary PbO PbCl 2 CuCl 2 glasses has been prepared and investigated by X-ray diffraction, DTA and X- and Q-band electron paramagnetic resonance spectroscopy. The overall motif of short-range structure in these glasses involves two types of species. (i) The common 'type I' ...