A certain solution is 70% ethanol and the rest being distilled water. If there are 12 moles of ethanol per litre of solution, find the density of the solution.​

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out