N2+3H2-> 2NH3 What is the mole ratio between Nitrogen (N2) and Ammonia (NH3) in the above reaction A. 1 moles NH3/ 2 moles N2
B. 2 moles N2/ 3 moles NH3
C. 2 moles NH3/ 1 moles N2
D. 1 moles N2/ 3 moles NH3

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.

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".