Two atoms interact with each other as shown by the equation. Complete the equation by filling in the missing parts. 1
2
3
4
5
H Н.
He
Li
?H + He
H

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?

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as

An unsaturated hydrocarbon is a hydrogen-carbon compound with a. a network solid structure b. single bonds c. single bonds in a branched-chain structure d. double or triple bonds