S8 + 12 O2 —> 8 SO3 what volume of oxygen would be required to completely react with 45.7g of S8

Define dew point. i am writing this part to be able to ask the question

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?

If an atom has 12 protons and 13 neutrons