Calculate the intrinsic carrier concentration, ni, at T 200, 400, and 600 K for (a) silicon, (b) germanium, and (c) gallium arsenide

Is this a scientific model? use complete sentences to explain why or why not. a graphic organizer showing the water cycle

200. ml of 3.00 m nacl solution is diluted to a final volume of 500. ml. what is the molarity of the final solution?

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.