PLEASE HELP FAST!! How much energy (in calories) is need to melt 3.0 moles of ice?

Which term refers to a property that depends only on the amount of a substance? ©@

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.