Which nonmetal in the atmosphere is both helpful and harmful to living things

In this reaction n2o4(g)→2no2(g) what changes in color would you expect as pressure is increased at a constant temperature

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

100 points answer quick 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.