Name the layers of earth in order from most dense to least dense.

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

Give the orbital configuration of the phosphorus (p) atom.

Why do lunar and solar eclipse not happen every month