If 20.0 grams of silver nitrate are dissolved in water and the resulting solution is divided into two equal portions and poured into two beakers, how many moles of aluminum and how many moles of zinc are required to replace all of the silver in the separate reactions

Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .