Which line provides an example of an antagonist? (6 points) jessica gave me an evil glare and an unspoken promise to make my life miserable. jorge won the trophy finally after many years of losing to justin. mason tossed the ball my way and managed to block the guard for my shot. scottie had been my friend for many years and always had a good story to tell.

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.)