For which each question , which box do I mark?

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

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins