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

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?