Question

why is chemistry a science, but alchemy was not?
a. chemistry desle with many elements, whereas alchemy dealt with only four elements.
b. chemistry uses experiments to test ideas, whereas alchemy used evidence.
c. chemistry uses experiments to test ideas, whereas alchemy used superstitious practices.
d. chemistry is done by chemists, whereas alchemy was done by aristotle.

Explanation:

Chemistry is a scientific discipline that relies on experimental methods to test hypotheses and theories. It is based on evidence and the scientific method. Alchemy, on the other hand, was often associated with superstitious and mystical practices rather than a systematic, evidence - based approach.
Option A is incorrect because the number of elements considered is not the fundamental difference. Option B is incorrect as alchemy did not use evidence in the scientific sense. Option D is incorrect as the identity of the practitioners is not the key distinction.

Answer:

C. Chemistry uses experiments to test ideas, whereas alchemy used superstitious practices.