The investigational new drug ind application contains which of the following information? a. effectiveness of the test drug in humans b. toxicity of the test drug in animalsc. safety in effectiveness of the test drove after of da approvald. toxicity of the test drug in humans

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e