How many moles of helium are needed to fill a balloon to a volume of 7.9 L at 23.2 ℃ and 215.4 mmHg?

Building glycogen from glucose molecules is an example of

How many moles of oxygen react with 12 moles of aluminum

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