Answer:
Almost all front wheel drive cars have an open differential meaning per axle the power will go to whatever wheel has the least resistance, so if one wheel slips then that wheel will receive all the engines power.
However more automakers are adding traction control to more of their vehicles meaning that if a wheel slips then the brakes will activate on that wheel therefore transferring power to the other wheel giving you significantly more traction
Some vehicles will have limited slip differentials which mechanically will allow one side to spin only so much faster then the other