The Twister and Runaway Train are two coasters at the same amusement park. Both coasters start at the same height. The coaster for the Twister is twice the mass of the coaster for the Runaway Train. Which roller coaster has greater gravitational potential energy at the start of the ride? I don't understand this!

The kw for water at 0 °c is 0.12× 10–14 m2. calculate the ph of a neutral aqueous solution at 0 °c.

Predict the relative bond lengths of the three carbon-oxygen bonds in the carbonate ion (co2−3). what would you expect the charge to be on each oxygen? match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer.

The term gas is limited to those substances that exist in the gaseous state at