Need the answer asap! Will mark brainliest!!

What is the formula that this ionic compounds could form sr2+p3-o2-

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?

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.