When defining terrestrial biomes, which of the following information is most useful?

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

Calculate the number of molecules present in 0.750 mol of mgo.

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true