Chemistry Acid and Base

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.