General Chemistry 1 (CHM 1210), General Chemistry 2 (CHM 1220), Modeling the Fundamentals of Physical Chemistry (CHM 3010), and Chemistry for Elementary Educators (CHM 2120)
I found the General Chemistry text through an email from the publisher. After reviewing this free resource, I decided that it was sufficient and pedagogically appropriate for the course. (OpenStax)
For the Modeling the Fundamentals of Physical Chemistry course, I had previously participated in reviewing the resources at the OER site. As the number of resources grew, there were sufficient reading portions that fit my course. Best yet, these resources continue to be improved, grow, and are up to date in an ever-changing field. (LibreTexts)For the Chemistry for Elementary Educator course, there are no available appropriate texts, but there were sufficient background resources available (ck-12.org) that I was able to construct my own text. That text is supplemented with online resources for topics required by the certification body.
Fundamental principles and concepts of chemistry, including atomic and molecular structure; nomenclature; stoichiometry; solution chemistry, including acid-base and redox chemistry; quantum theory; periodic properties; bonding theory; thermochemistry; gases; and intermolecular forces.