4.Calcular la presión parcial y el volumen parcial de O2 en una mezcla que contiene 96g de este gas y 84g de N2 a la presión total de 1atm y 300k ayud urgenteee

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?

Answer asap : ( a. how does mucus prevent the entry of pathogens? b. describe two ways white blood cells protect us from pathogens.

Which three statements represent the benefits of performing experiments using computer simulations?