Si units and prefixes help❤️

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

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