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

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

How are isotopes of the same chemical element alike? how are they different?

Explain that newton first law, second law and third law of motion?