Which element would you predict to have the larger atomic radius? Why? a) Carbon or Oxygen
b) Fluorine or Iodine
c) Beryllium or Calcium
d) Fluorine or Francium

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?