Determine the number of molecules in 3.79 kilograms of the fictional compound Cs7(Cr5O3)4. Include the units, but do not write the chemical formula. Round the answer to 3 significant figures.

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.

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Which characteristics can be used to differentiate star systems? check all that apply.