BALANCING EQUATIONS
Balance the following chemical equations.

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Word equation for k(s) +h2o(l) yield koh (aq) + h2

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?