Which of the following best describes compounds? А
They can only be separated chemically.
B
They are always liquid at room temperature.
С
They contain the atoms of just one element.
D
They have the same peperties as their elements.

i believe it is c.) 1575 j.

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.