# Tag Info

## Hot answers tagged electrochemistry

### Electrolysis with salt water on steel plates creates horrible black liquid

The applied current drives sodium ion to the cathode (negative pole) where hydrogen is evolved and the surrounding medium becomes more alkaline. The more interesting - in the sense of catastrophic - ...
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Accepted

### Why sodium and calcium swapped their positions in electrochemistry series and metal reactivity series?

The electrochemistry series is based on the thermodynamic parameter - standard redox potential, directly linked to standard molar Gibbs energy of a formal reaction (See e.g. this libretexts doc): \...
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• 27.9k
1 vote

### What endothermic reactions can be effectively reversed by electrolysis?

Any elemental, i.e. single step, reaction and many more complicated reactions that can reach equilibrium, can be reversed. The forward and reverse reactions in an equilibrium situation follow the same ...
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### Electrolysis with salt water on steel plates creates horrible black liquid

Warning! In the process of this experiment, you most possibly have created some amount of toxic, carcinogenic, and environmentally harmful waste. Read further for answer to your question and more ...
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### What starts the reaction in a voltaic cell?

I think your iterpretation of electrochemical cell is incorrect. Firstly, the electrode is not dipped in a neutral electrolyte. You must have seen that whenever an electrolyte is represented for an ...

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