Ayuda porfa es de química ​

Asolid that forms and separates from a liquid mixture is called

Will mark brainliest how many electrons can be held in the energy level n = 4?

What would be the original temperature of a gas that has a volume of 2.0 l and a pressure of 2.0 atm and an unknown temperature that the volume increased to 3.5 l in its pressure decreased to 1.0 atm if the final temperature is measured to be 11°c