How many orbitals are in the n = 3 level?

500bc indiais the answer.

257 grams h2o i think

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

It's called the falling actionwrong subject by the way