What do oxygen (o) and bromine (br) have in common? they both tend to gain electrons to gain stability. they both have seven valence electrons. they are both halogens. they are both unreactive.

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 causes most sediment to wash or fall into a river

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false