Steps necessary to separate mixture into three pure dry solids

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.

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.