How many grams of oxygen are produced when 36.6 g of NO2 is formed?
2 Pb(NO3)2(s) --> 2 Pb(s) + 4 NO2(g) + 1 O2(g)

s too much pool water may lead to chlorine poisoning. the concentration of chlorine in public drinking water is extremely low and not harmful to human health. sooo yeahh

explanation:

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.