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General chemistry serves as the foundational language of the chemical sciences, yet its concepts are often perceived as abstract and disconnected from everyday life. This paper showcases how the core principles presented in Raymond Chang’s General Chemistry can be woven into modern, real‑world contexts ranging from sustainable energy to medicinal chemistry. By integrating quantitative problem‑solving, laboratory techniques, and conceptual reasoning, we illustrate how a solid grasp of atomic structure, thermodynamics, kinetics, and equilibrium empowers students and professionals to address pressing societal challenges. The discussion also highlights pedagogical strategies that leverage open‑access resources and verified digital textbooks to enhance learning outcomes. general chemistry raymond chang pdf download verified