The molar heat of fusion for water is 6.020 kilojoules/mole. How much energy required to melt 81.00 grams of H20 A)208.4 kJ
B)18.00 kJ
C)27.09 kJ
D) 15.56 kJ

Tropical easterlies is mostly likely your answer correct me if i’m wrong

You use the atomic number to find out how many protons and neutrons there are in the atom. you use the atomic mass to find out how many protons and electrons there are in the atom. 

Both models are effective because they show the valence electrons, and these valence electrons indicate the reactivity of an element.

The answer is c - the principal of original lateral continuity.