A0.00100 m na3[co(cn)] solution with a volume of 50.0 ml was treated with 0.0100 m hg2(n03)2 to precipitate (hg2)3[co(cn)6]2. using activity coefficients, find pco(cn)6 when 90.0 ml of hg2(no3)2 was added.

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!

Do polar molecules have ionic bonds?