What will a nonmetal do when it combines with a metal atom

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?

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy

When the mercury level in a barometer decreases that atmospheric pressure has