Hi, can someone help me identify compound S in the image attached?

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?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?