A sample of an unknown substance has a mass of 89.5 g. If 345.2 J of heat are required to heat the substance from 285 K to 305 K, what is the specific heat of the substance?

A32 year old immigrant from a patriarchal country is giving birth. as she is delivering the baby, she tearfully confesses to her doctor that this is her 4th child and she simply cannot handle any more children. she tells the doctor that her husband refuses to use contraception or allow her to, and she begs her doctor to tie her tubes and not tell her husband. the doctor complies. was hipaa violated? why or why not?

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

Find the mass, in grams, of 5.00*10^23 molecules of f2