What is a mixture? 1. Potassium metal
2. Chlorine gas
3. Potassium Chloride
4. Potassium and Chlorine

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.

What is the relationship between ozone and smog?

When a metal and an bond they do not share electrons