How many grams in 4.5 moles of H2O?

In apex! a liquid heated beyond a certain temperature becomes

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

Aroller coaster is traveling at 13 mi./s when you purchase a hill that is 400 m long and down the hill exonerate at 4.0 m/s squared what is the final velocity of the posterior found your answer to the nearest number