11) When determining whether a chemical reaction has taken place, you observe and look for several indicators Which would be considered an indication that a chemical reaction or chemical change has taken place?
A) Solid melts
B) Heat is given oft
Substance dissolves
Dj Substance changes shape

Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.