If 0.86 mole of MnO2 and 48.9 g of HCl react, how many grams of Cl2 will be produced? MnO2 + 4HCl → MnCl2 + Cl2 + 2H2O

Smog is the term used to describe the combination of fog and smoke

Which of these is a physical property

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)