1. Por que a maioria dos metais é usada na forma de ligas?​

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?

How can a mixture of salt water be separated into salt and water

Why do electrons further from the nucleus have more energy