How should I change my resume -- chemistry major?

One thing that you should always have in your resume is how you improved or advance part of the company. Think of what you have done that no one else did and how it helped the companies you worked for become better. Even if it is a small thing that you did or if it only affected one part of the company still mention it. Employers know that anyone with your education level and skill level can do what you have listed on here...they want to see what you have done and can do in the future to help and improve their company. Telling them that will set you apart from other prospective employees and will give you an edge over everyone else :)