Nacgat Helga NH3(g)N2(g)+H2(g) Nh3(g)​

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

може ли да зареждате повече информация, моля

it's c (engineer's do their work with mechanical stuff not on any living being)

alchemy hadn't scientific methods of study, appeal to mysticism and fantasy, the knowledge of chemistry and physics were modest at that time.

alchemy was - but as new rules were discovered it either changed into chemistry or it became "unscientific".