In a chemical reaction sodium and chlorine react to form sodium chloride. which term names the sodium?

What is the density of the black hole

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?

What is the percent by mass of oxygen in fe2o3