Ascottish chemist thomas graham observed and experimented with gas particles in the 1800's. he formulated a mathematical equation that describes the relationship between the mass of a gas molecule and its rate of effusion. this relationship is a

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.

Why dose heating increase the speed at which a solution dissolved in water

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 .