How much energy is associated with the process where 2 moles of NO2(g) (product) are formed from
gaseous atoms?

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

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?