How do the properties of a mixture explain how they can be sepetated

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?

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?

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.