Which statement is true about endothermic and exothermic reactions? Energy is absorbed in an exothermic reaction.

Energy is released in an endothermic reaction.

The products have less potential energy than the reactants in an exothermic
reaction.

The products have less potential energy than the reactants in an endothermic reaction.

The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed

Name the element in group 17, period 2. (periodic table)

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins