23.Explain why children often look like their parents.

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?

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa

What is the number of neutrons in an atom with atomic mass of 35