What is the approximate total mass of the reactants, and how should it compare with the total mass of the products? Multiple choice question. a. 62 g, which should be less than the total mass of the products b. 62 g, which should equal the total mass of the products c. 372 g, which should be less than the total mass of the products d. 372 g, which should equal the total mass of the products

1) this is the structure in the cell nucleus that houses a cell's genetic information

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8

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.)