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The compound ammonium sulfate consists of two ions, [tex]\(NH_4^+\)[/tex] and [tex]\(SO_4^{2-}\)[/tex], both of which are [tex]\(\square\)[/tex] ions. A molecule of the compound consists of [tex]\(\square\)[/tex] [tex]\(NH_4^+\)[/tex] ion(s) and [tex]\(\square\)[/tex] [tex]\(SO_4^{2-}\)[/tex] ion(s).