Which substance has Delta. Hf defined as 0 kJ/mol? H2O (s) Ne (l) F2 (g) CO2 (g)

Describe in detail the melting point behavior of the 80: 20 benzoic acid-mandelic acid mixture

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar