The answer is B.
plz mark me as brainliest. i really need it.
<span>If energy is released, the reaction is exothermic. If energy is absorbed, the reaction is endothermic. Since heat is being absorbed in this reaction (to break down H2O into H2 and O), the reaction is endothermic.</span>
Two or more different elements
It has different moleculs sorry I am guessing
