Will give brainliest to the first correct ! my brain isn't working today xddd

Plz me get these answer dubble cheak ur answer plz ppl i need it right

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

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?