A student walks 3.0 hours and travels 6.0km what is the averge speed

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

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?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?