Compare the amount of thermal energy needed to melt a solid and the amount of thermal energy needed to freeze the same liquid

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?