Specific replies to the reviewer's suggestions.

1. I may suggest that the author rewrite the abstract, instead of an
introduction to the contents of the article, the author may just briefly
describe the results of the study in the abstract.
I have chosen not to change the abstract. Given my perception that many readers may wish to know the mechanics of such a course, it seems justified to include a very brief description of the course content.

2. The class design mentioned in this article is quite interesting.
However, it seems too general, it would be nice if the author can focus on
the problems, which are more related to the chemistry and not to all
students.
The reviewer is correct in the perception that the content is quite general. Probably none of the issues are unique to chemists. This is in part due to the breadth of the chemical enterprise. At the same time, many of the issues that I address in the Discussion Section are of particular concern to chemical professionals.

3. The readers would like to know what is the special way and issues the
author had used to teach Professional Ethics to Chemistry Undergraduates.
What is the response of the students in each issue, instead of the
curriculum of the course.
I have added several sentences and a longer paragraph to describe in more detail the responses of the students. I have, however, chosen to retain the more general description of the course curriculum.

4. In conclusion, if the author can focus more on professional ethics and not just ethics and discuss more on the way to teach professional ethics to students majoring in Chemistry and the response of the students, then the readers can benefit more from this article.
After I have had more experience in teaching the course, I will try to write up an article with a more nuanced description of response of the chemistry students.