Which change will cause gravitational force between and a soccer ball to increase?

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?