Mathematically determine the limiting reactant when 15.00 g aluminum sulfide and 10.00 g water react to completion. The
equation for the reaction is:
AL2S3 + 6 H20 ---> 2 Al(OH)3 + 3 H2S

i think slash and

the answers are

c and c

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".