1. which is a true statement? all metals will stick to a magnet. only precious metals like gold, silver, and platinum are magnetic. there are only 3 metals that are magnetic, and they are iron, cobalt, and nickel. a nickel, as in pocket change, is made of nickel and is therefore, magnetic.

La reaccion entre monoxido de nitrogeno (no) y oxigeno para formardioxido de nitrogeno (no2) es un paso determinante para la formacion del smog, la reaccion es la siguiente: 2no + o2 = 2no2 cual sera el numero de moles de no2 que se formaran por la reaccion completa de 8 moles de oxigeno con suficiente monoxido?