A:Answer Yes it connects to wifi, and should work in argentine as long as the network your intending to use uses any of the following radio frequency bands.
Moto G - GSM (XT1540)
LTE (2, 4, 5, 7, 17)
UMTS/HSPA+ (850, 1700/AWS, 1900, 2100 MHz)
GSM/GPRS/EDGE (850, 900, 1800, 1900 MHz)