HELP ASP What is the balanced chemical equation for the below skeleton equation:
Al + O2 → Al2 O3

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²

Which type of intermolecular force is pbr3