When you are ice skating, to get started, you push your skate backwards on the ice and, as a result, begin to move forward. which law of motion is being described in this scenario?

Newton’s third law of motion

Explanation:

According to Newton’s third law of motion –  

For every action there is an equal and opposite reaction

Here in this case, during ice skating the force is first applied in the back ward direction (this can be referred to as an action) In response to this action an equal and opposite reaction/force is produced which moves the ice skater in forward direction .