Question

what is chemistry?
a. the study of living things
b. the scientific study of matter
c. the study of changing ideas
d. the study of how matter and energy interact

Explanation:

Chemistry focuses on matter (its composition, properties, etc.). Option A is biology (study of living things). Option C is not a standard definition. Option D is more related to physics (matter - energy interaction). So, chemistry is the scientific study of matter.

Answer:

B. The scientific study of matter