can you put studded snow tires just in the back (09accent)

Since the drive wheels on this vehicle are on the front, that's where I would put the tires with the most traction, the studded ones, on the front.

Most places recommend matching tires on all four wheels, so if you have studs the all four must be studded, if you have all seasons then all four must be all seasons. The reason is simply traction per road conditions. Snow and ice studded tires, wet and dry roads all season tires. However there are some all seasons that can handle some snow to a point.