The enthalpy of atomization (also atomisation in British spelling) is the enthalpy change that accompanies the total separation of all atoms in a chemical substance (either a chemical element or a chemical compound)
1.50 mol C3H8 X (3 mol CO2 / 1 mol C3H8) X (44.0 g CO2 / 1 mol CO2) = 198 g CO2
Atomic Number-6
Mass Number-14
Well, i checked my cereal box and it says "net wait g (500)" so it's probably Grams
Answer = (C.) g
Melting point... hope this helps