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What decides whether a compound will dissociate (break-up) under thermal decomposition or photolysis or electrolysis i.e if I am provided with a compound and I'm asked to dissociate it then how will I get to know that it would dissociate under thermal decomposition or photolysis or electrolysis.

Please try to provide an easy-to-understand as I'm in just 10th grade

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closed as too broad by pentavalentcarbon, Todd Minehardt, airhuff, Buttonwood, porphyrin Jun 5 '17 at 6:48

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ The most general answer is that every compound will breakup if enough energy can be added to it. In a simple diatomic thermal energy will increase the vibrational (and rotational) energy until the bonds breaks. Electromagnetic radiation (uv, vis , ir) can also do this, as well as forming excited electronic states that decompose. $\endgroup$ – porphyrin Jun 4 '17 at 8:33
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You should analyse the chemical bindings in your compound, e.g. ion bindings will easily break-up in water, stronger bindings may require You to use heating or electric current to dissociate the molecule. Also if you know the structure of the compound, look for some similar structures on the internet, the more similar the structures, the more similar properties they have, so similar factors will dissociate them.

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