The solubility of zinc bromide at 20°c and 80°c are 446 and 645 respectuvely. what is the weight og zinc bromide crystal formed when 100 gram of solution cooled from 80°c to 20°c.

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a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

catya your not at all which answer i've seen you do this on another question!