At first glance, I thought this site was for introductory chemistry... And it is if you start here.
Upon further examination, I found a full chemistry course/ online textbook on the site here: http://www.chem4kids.com/map.html
I prefer sites designed for kids when it comes to science subjects because it discusses the concepts in a simple, easy to understand manner.
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I recommend you purchase a Chemistry workbook to help you apply the concepts you learn.
Most Recently Added resources found
at this link