The electrophilic bromination or chlorination of benzene requires along with the halogen. A. UV light
B. a bronsted base
C. a Lewis base
D. a Lewis acid
E. none of these

The grooves or folds of the brain are called

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

Drug abuse will not lead to physical and psychological dependence. true or false ?