How many moles of NH3 can you make from 6.20 moles of N2?

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?

Drug abuse will not lead to physical and psychological dependence. true or false ?

What is the source of continuous heat and energy that we receive from the sun