More free points if you say what up tho

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

How can one make a supersaturated solution? (apex)

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?