Why is the atomization enthalpy of Na (s) lower than the sublimation enthalpy of Na? atomization enthalpy of Na= 107 kJ/mol
sublimation enthalpy of Na =108 kJ/mol

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?