The ΔHfus for sodium is 2.60 kJ/mol. The ΔHvap of sodium is 97.42 kJ/mol. The specific heat for solid sodium is 1.23 J/g°C. The melting point of sodium is 97.81°C. The boiling point for sodium is 882.9°C. How much energy is released when 50.0 grams of sodium is condensed at its boiling point?

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Draw the structure for 5-isopropyl-2-methyl-3-nonene

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided