HELP FAST A 18.11 gram sample of chromium is heated in the presence of excess
bromine. A metal bromide is formed with a mass of 101.6 g.
Determine the empirical formula of the metal bromide.
Enter the elements in the order Cr, Br
empirical formula

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Me i dont know what to do! 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.

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.