Logically, if you add something that is cold to an already hot substance, it can't get warmer because the substance added was cold. Therefore, the substance as a whole can only get cooler.
Like if you add ice to a hot glass of water, the substance as a whole will get cooler because the original substance was hot, and the substance added was cool.
Solid ionic compounds do not conduct electricity because the ions are held firmly in place. The ions cannot move to conduct the electric current. But when an ionic compound melts, the charged ions are free to move. Therefore, molten ionic compounds do conduct electricity.
A cube has a volume of 8.0 cm3 and a mass of 21.6 grams. ... using an electronic analytical balance. ... graduated cylinder ... The density of iron is 7.87 g/mL.
