Fuel cell cars that use hydrogen as fuel have the potential to be quiet, produce low emissions, and require less maintenance than gasoline cars. what negative effect might hydrogen fuel have on the environment?

Which is a characteristic of mixtures?

In which phase(s) do the molecules take the shape of the container?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 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.