Air is made of seperate molecules of oxygen, nitrogen, and carbon dioxide. is the air a pure substance or a mixture? explain.

An aqueous solution of potassium hydroxide is standardized by titration with a 0.194 m solution of hydrobromic acid. if 25.2 ml of base are required to neutralize 24.2 ml of the acid, what is the molarity of the potassium hydroxide solution? m potassium hydroxide

The rules of engagement (roe) working group is often used to (select all that apply.)

Why do cells appear different in distilled water than they do in 10% salt water?