In a(n) reaction, the products are at a higher energy level than are the reactants.
select one:
a. endothermic
b. activation
c. exothermic
d. catalytic

In an endothermic reaction, the products are at a higher energy level than are the reactants.

Explanation:

Endothermic reaction has positive ΔH.

ΔH = E products - E reactants.

So, for endothermic reactions, the products are at a higher energy level than are the reactants.

Kindly see the attached image.

So, the right choice is: a. endothermic.

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.

Oh nskskakaaka