đốt cháy hoàn toàn 0,25 mol hỗn hợp y gồm 3 este đơn chức vừa đủ v lía o2 sau phản ứng thu được 1 mol co2 và 0,75 mol h20 giá trị của v là

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 diagram shows the correct way to represent an ionic compound of magnesium oxide?

What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol