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Na2SO4
NaBr
K2SO4
KBr
siarczan(VI) potasu: K2SO4
bromek sodu: NaBr
bromek potasu: KBr
Na₂SO₄- siarczan (VI) sodu
b)K⁺ i SO₄²⁻
K₂SO₄- siarczan (VI) potasu
c)K⁺ i Br₋
KBr- bromek potasu
d)Na⁺ i Br₋
NaBr- bromek sodu