podaj izomery heksanu i ich wzory uproszczone

* CH3-CH2-CH2-CH2-CH2-CH3 n-heksan * CH3-CH(CH3)-CH2-CH2-CH3 2-metylopentan * CH3-CH2-CH(CH3)-CH2-CH3 3-metylopentan * CH3-C(CH3)(CH3)-CH2-CH3 2,2-dimetylobutan * CH3-CH-(CH3)-CH(CH3)-CH3 2,3-dimetylobutan