Answer:
Hydrogenation – meaning, to treat with hydrogen – is a chemical reaction between molecular hydrogen and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic compounds
Explanation:
Just dived both numbers by two
Answer:
I think it's 4
Explanation:
but I don't really remember the water cycle
Answer:
The retention factor of an ion is 0.10 .
Explanation:
Retention factor is defined as ratio of distance of distance traveled by solute to the distance traveled by solvent on chromatogram.

We have:


The retention factor of an ion :
