Which characteristic(s) makes ionic compounds useful as a building material?
low melting and boiling points
hardness and brittleness
inability to conduct electricity
inability to dissolve in water
i need the answer now !

Name the element in group 17, period 2. (periodic table)

Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?

Mercury turns to vapor at 629.88 k how much heat is lost 175 g of mercury vapor at 650 current condenses to a liquid at 297 ca mercury turns to weber at 629.88 kelvin how much he is lost 175 g of mercury vapor and 650 coming condensers to liquidate 297 kevin