What is causing my 1996 cavalier to lose antifreeze immediately after adding it on 1996 Chevrolet Cavalier

also the heater blows out cold air

Asked by for the 1996 Chevrolet Cavalier
is the coolant going on the ground or in the engine
The coolant is leaking in the engine can't see from where it is leaking from the surge tank, thanks for your input.