the law of definite proportions is only applicable when the elements which are reacting together form the same product. true of false

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?

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.