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Double displacement reactions?
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[QUOTE="Borek, post: 6066036, member: 23711"] Good point, it would be better to mark some salts as (aq) and lead iodide as (s) to make things clear. You can always filter out the solid, then it is much more clear that the reaction did happened. In general you are perfectly right. In practice most chemists would do a mental shortcut and treat the equation as describing reaction taking part in water, especially as it is a textbook example used quite often in this context. Technically every chemist taking the shortcut is wrong in general. It is a can of worms, zillions of possibilities even for simple examples. Still, in the case of water solutions it is enough to remember some simple solubility rules to predict the most obvious cases. All these can be important, especially when there are substance substances ready to get reduced/oxidized/complexed. No way to predict what will happen without tables (redox potentials, complex stability, solubility, dissociation etc). As I wrote, the equation that started this thread is a rather trivial case. [/QUOTE]
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Double displacement reactions?
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