This free chemistry textbook from Boundless Learning is based off openly available educational resources such as "government resources, open educational repositories, and other openly licensed websites." The textbook contains 25 chapters such as Introduction to Chemistry, Atoms, Molecules, and Ions, and Mass Relationships and Chemical Equations. The textbook can be browsed on this page or downloaded as a pdf. Students can register for a free Boundless account to access a search engine and other study tools to efficiently find specific topics and master the content.

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