The arrow shows the movement of electric
charges through a wire connected to a battery.
What causes the electric charges to flow from one end of the
battery to the other?
a balance in electric potential
a balance in resistance
© a difference in electric potential
a difference in resistance

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?

The same side of the moon always faces earth because the

Five different substances are given to you to be dissolved in water. which substances are most likely to undergo dissolution in water? check all that apply. view available hint(s) check all that apply. sodium fluoride, naf octane, c8h18 propanol, ch3ch2ch2oh potassium iodide, ki benzene, c6h6