[sineth]

Hello everybody, i hope u all are well.

for one of my school lab, i must plan out an equilibrium reaction that would demonstrate Le Chatelier's principle. ive been looking for days, and i think im going crazy. i cant find a reaction that is feasible (the chemicals are not hard to obtain) and that the chemicals should be aqueous or liquid, the school does not have any gas syringes. i hoping for a reaction with eaither color pr pH change, color would be best but il be gratefull for anything.

please help.

[Borek]

Do you know why pH indicators change their color?

[sineth]

its due to the ion formation is it not? can i ask how thats related?