Citing your sources provides proof that you have entered the scholarly conversation surrounding the topic of your project. You place your ideas and thoughts in the context of the research that has come before yours.
Citing pro tips:
Every subject area has a roadmap of how sources should be cited. Consider the citation format like rules of the road: everyone knows what the stop sign looks like and means, and everyone knows we drive in the right lane in the United States. In chemistry, that roadmap of rules is called the ACS Style Guide. And here's a quick reference guide to how to format your citations.