Put the following explosives in order by increasing percent nitrogen.

Can someone me with questions 12 and 13 plz.

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Why is retrograde motion an apparent motion