<h2>
Answer</h2>
They get involved in this new information
<h2>
Expalantion</h2>
In the ancient time, the scientists believed that there is the smallest particle which can control the nature of reaction in the environment which they called them. Then a lot of experiment was conducted in which new coming scientists discovered the protons, electrons, neutrons, and other smallest particles. Firstly, scientists performed experiments for this new discoveries to know better about them and then include them in their next experiment for better exposures.
Opposite from the angle is 134.7905
Adjacent to the angle is 192.5007
Neutral reaction is the reaction that occurs when an acid cancels with a base