The required reading is Chemistry by Stephen Zumdahl.
To start off, you can start studying from the link provided: https://www.ck12.org/student/. You will need to create an account but the content itself is free. It is great for elementary resources and starting readings.
The link below has all the free resources for all the subjects such as virtual labs and chapter by chapter quizzes.
What was Covered and Homework
Based off of Material Covered in "Chemistry: 10th Edition" by Stephen Zumdahl
Elements, Compounds, and Gases
All Around Us
-Periodicity & Periodic Trends
-Bond Types & Electron Configurations
-Ideal Gases and Gas Laws
Reactions & Equilibrium Chemistry
What Makes Things go Boom
-Types of Chemical Reactions (Review)
-Equilibrium, Keq, and Equilibrium Chemistry
-Le Chatelier's Principle
Acids and Bases
The Yin and Yang of Chemistry
-Thermochemistry & Thermodynamics
-Solubility Rules & Equilibria