1. Equalization Principles in Open Subsystems2. Dual Origins of Information Content and State Continuity3. Electronic Communications and Chemical Bonds4. Virial Theorem Implications for Displacements in Resultant Gradient Information 5. Simple Models of Charge-Transfer Reactivity6. Entropy and Information Sources7. Equidensity Orbital Description8. Electronic Diffusion and Subsystem Entanglement9. Nonadditive Entropic Criteria10. Miscellanea on Reactive Systems