Which of the following elements has 4 electrons in its outermost orbital?
F
Mg
Si
Ne

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Describing intermolecular forces use the drop down menus to match the type of intermolecular force to its name dipole dipole interactions dipole induced dipole interactions london dispersion forces hydrogen bond van der waals forces done

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?