What is the first mechanistic step in the acid-promoted dehydration of cyclohexanol? A base pulls off a hydrogen atom The OH group accepts a hydrogen ion from the acid Loss of a water molecule Formation of an alkene

Iknow the answer is a but i don't know why

The grooves or folds of the brain are called

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of