200 lbmol/h of a mixture of unknown alkene (cnh2n) is burned with excess air. the 1. outlet stream contains 8000 lbmol/h of gas containing (in mol %), 5% o2, 75% n2, 10% co2, 10% h2o, and no co. what is the chemical formula of this alkene?

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.