Partial compensation means that the pH is still abnormal.

Full compensation means that the pH is back to normal.

With both CO₂ and HCO₃^- normal, there is no compensation taking place here.

If compensation is present, it's always the opposite of the primary problem (acidosis becomes alkalosis, metabolic becomes respiratory, etc.)

CO₂ is the respiratory component.
HCO₃^- is the metabolic component.

The pH is normal, so either everything else is normal, or the problem has been fully compensated. For fully compensated states, assume that the compensation never pushes the pH past 7.40 (the pH stays on the same side as the primary problem).

For an acidotic pH, the primary problem is acidotic components (CO₂ and/or HCO₃^-). Similarly, alkalotic components are what cause an alkalotic pH.