Which elements are oxidised and which are not?

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?

Define dew point. i am writing this part to be able to ask the question

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer