Which of the following collisions will initiate the reaction? The energy of the collision is written in kJ beside the possible orientation of the molecules.

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2

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".