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. it is not a good idea. new hfc refrigerants require a different type of oil than the R22 units. the new refrigerants typically run at higher pressures than the R22 units.
No, refrigerants cannot be blended.
assuming youre talking about AC recharging, you should not mix refrigerants. if you have R22, and you want to convert to R132a, you should completely discharge your old system before adding the new refrigerant. it is illegal to discharge your system yourself, because R22 is very harmful to the environment. you should take it to an AC repair shop so that they can recapture and recycle the old stuff. then you can take it home and charge it yourself with a simple conversion kit.
No. They use R22 or R410A. Cars use R12 (before 1993) and R134A (after 1993). You cannot mix them together.
No
Chemical composition and properties, different system pressures, different pressure/teperarature relationships in when they'll change states from liquid to vapor... you never mix refrigerants, period.
sorry, no.
no.
no
No
short answer: Only people with and EPA certification may purchase R22 and/or R410A refrigerants.