The map shows concentrations of ozone around the world. Ozone shields the earth from harmful ultraviolet light rays from the sun, which cause skin cancers. Aerosol pollutants have reduced levels of ozone by reacting with the ozone.
According to the map, what country would likely have the highest rate of skin cancers?
A)
New Zealand
B)
Argentina
England
D)
Japan

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices