Which of the following best describes how a compound naturally occurs?

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.

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?

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2