When ammonium nitrate is dissolved in water, energy is absorbed from the surroundings, causing a decrease in the resulting solution's temperature. which of the following best describes this type of reaction?

A reaction that absorbs energy from the solution and decreases the solution's temperature is called and endothermic reaction. A physical change that absorbs heat can also be described as endothermic.
The opposite of endothermic is exothermic. A reaction that is exothermic releases energy to the surroundings. This is observed as an increase in the temperature of the solution.

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.

The correct answer is c