Which of the following scientific advances has not society?

discovery of penicillin

discovery of the structure of dna

discovery of semiconductors

most discoveries in science society in some way.

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

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 have the greenhouse gasses increased from the year 2000 to 2018