The chemical reaction between iron (fe) and oxygen (o) results in the loss of electrons from iron. this reaction is an example of?

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

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?