Is Chlorine trifloutide ionic or covalent?

If the same amount of cacl2 is added to equal volumes of water and maple syrup, which will have the higher temperature?

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.