Quick! you mix two liquids together, and they begin to bubble. has a chemical reaction occurred? why or why not? ( explain to the best of your ability in your own words and not copy off other websites or other answers, ) : )

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?