A) If you weigh a hydrated compound before and after heating it. Do you expect the mass to be more or less than before heating? Explain why.

b) How about if you weigh a bag of popcorn before and after heating it. Does the popped corn
weigh more or less than the unpopped kernels? Explain why.

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms

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.