16. You are running a TLC plate with a polar (A) and nonpolar substance (B); your solvent is a hexane and dichloromethane mixture (1:1). Substance B is traveling up the plate, but substance A has not traveled at all. What solvent might you add to the solvent mixture for substance A to move up the plate

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

The reaction below shows a system in equilibrium. how would a decrease in temperature affect this reaction? a. the rate of formation of the gases would increase. b. the equilibrium of the reaction would shift to the left. c. the equilibrium would shift to cause the gases to sublime into solids. d. the chemicals on the left would quickly form the chemical on the right.