11、D
A、升高温度促进水解,碱性水解增强应该ph升高
B、元素守恒,Na:S=2:1,等式右边应该都是2倍的
C、电荷守恒,HSO3-只带一个负电荷,前边没有2
D、钠离子没的说了,加入了碱抑制水解,亚硫酸根剩的就比原来多了
12、D
a、b不连接可以发生置换反应,连接后发生电化学反应,铁片溶解得亚铁离子,故A、B、C都对
D、a、b连接电流:铁片→溶液→铜片
a、b分别连接直流电源正负极后,电流:a→铜片→溶液→铁片→b→a
电压变大后,直流电源的分电流大于电化学反应的电流,总电流方向应该和接电源的一致,铜离子带正电,移动方向和电流方向一致,向铁电极移动
追问11题B.C可以再详细一点吗,还有,为什么+NaOH固体会抑制水解?
追答本来不想发图的,毕竟写字太难看了![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/730e0cf3d7ca7bcbd228979abb096b63f624a830?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追问谢谢
还有两道
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/8644ebf81a4c510f07cdbdaf6559252dd42aa57e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追答...上图吧
追问![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/6d81800a19d8bc3e8d285f7f878ba61ea8d34566?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
图发不出去
收到吗?
请
亲
追答![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/962bd40735fae6cd11e1ead40ab30f2442a70f29?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/30adcbef76094b36502f5a58a6cc7cd98c109dc2?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)