Lesson-specific diagram for Reaction–process–solution synthesis. It visualizes the reasoning sequence tied to $\text{reaction model}\to\text{quantity}\to\text{process}\to\text{solution/environment}$. Text alternative: Use conservation and stoichiometry to evaluate a chemical process in solution while considering green-chemistry redesign and environmental context. Choose a representation that matches the chemical scale and evidence; do not infer more precision or mechanism than the data support.