5. PubChem (https://pubchem.ncbi.nlm.nih.gov/): A comprehensive database of chemical compounds, including their properties, structures, and biological activities.
6. Royal Society of Chemistry (https://www.rsc.org/): The professional organization for chemists, providing access to journals, educational resources, and news updates.
7. American Chemical Society (https://www.acs.org/): Another prominent professional organization for chemists, offering publications, educational materials, and career resources.
8. ChemSpider (http://www.chemspider.com/): A chemical structure database providing information on millions of compounds, including properties, spectra, and references.
9. ChemGuide (https://www.chemguide.co.uk/): Provides tutorials and resources on various chemistry concepts, including organic, inorganic, and physical chemistry.
10. ChemTube3D (https://www.chemtube3d.com/): Offers interactive 3D animations and visualizations of chemical structures and reactions to aid understanding.
11. NIST Chemistry WebBook (https://webbook.nist.gov/chemistry/): Provides access to a wide range of chemical and physical property data, including thermochemical and spectroscopic data.
12.Periodic Table of Videos (https://www.periodicvideos.com/): A collection of educational videos showcasing each element on the periodic table and explaining their properties and applications.