Adigestive system where an organism has a series of tubes that start with a mouth and end with an anus is called a(n) digestive system. question 4 options: metabolism incomplete complete question 5 (2 points)

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?