yes
No
sorry, no.
no.
no
No
No
It is not recommended.
No , they operate at different pressures and are not compatible.
Not unless you like the idea of destroying your AC system.
Absolutely not ... R410 operates at much higher pressures than R22, and mixing would do nothing but contaminate both refrigerants (and possibly mess up your system)
No the whole system need to be evacuated of the r22 before you put r22a in the system. It's against the law to mix 2 different freons together and also dangerous.