What is Unsaturated solution?

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

What is the mass of sodium in 3 moles of sodium chloride

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