Joey was taking a chemistry test. in one question, he was asked to write the electron configuration for antimony (sb). he wrote it out like this: 1s22s22p63s23p63d104s24p64d105s25p3

Why does a cake rise when you bake it? ♡

Stage in which a typical star has completely stopped fusion

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.)