Write down the equations for the reaction of exchange with substrates with the given names or with the indications that the reaction is not happening a) Aluminum + iron (III) sulphate (VI)
b) Zinc + copper (II) bromide
c) Calcium + zinc chloride

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.