If energy keeps switching to keep the coaster moving up and down hills, why does it eventually stop?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.