Protons are in the nucleus of the atom and have a positive charge.
True or False?

During which time interval does the object travel approximately 10 meters

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?

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution