Solutions and pH Lesson Set

Use the solutions-and-pH topic route, the authored starter track, one buffer checkpoint, and the rates-and-equilibrium topic route so the broader chemistry branch stays compact and teacher-usable.

This lesson set is for the moment when chemistry should widen beyond the first rates-and-equilibrium pair without drifting into a giant curriculum tree. It starts with the solutions-and-pH topic route for orientation, uses the authored starter track for the main order, closes with the buffer checkpoint already shipped inside that track, and then points back to the rates-and-equilibrium topic route so the neighboring chemistry branch stays visible.

The topic route frames concentration, solubility, pH, and buffer reserve first, the starter track preserves the authored beaker-first order, the buffer challenge forces one honest neutral-under-pulse checkpoint, and the rates-and-equilibrium topic route shows where the same chemistry shelf can widen next.