A group of engineers run a trial test on a space probe built for measuring the surface temperature of the sun. After the trial, the engineers realize that the
probe melted and failed to collect the needed data. What should the
engineers do next?

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?