When there is an outbreak associated with a foodborne pathogen: A: illnesses, hospitalizations and deaths are reported but are not linked to specific
foods which may be the culprit.
B: illnesses, hospitalizations and deaths are reported and are linked to specific
foods which may be the culprit.
C: Only deaths are reported.
D: Only illnesses and hospitalizations are reported.

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

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".