Na2SO4+________= H2SO4 + ______

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Na2SO4+________=H2SO4+______Na2SO4+________=H2SO4+______Na2SO4+________=H2SO4+______Na2SO4+2HCl=H2SO

Na2SO4+________= H2SO4 + ______
Na2SO4+________= H2SO4 + ______

Na2SO4+________= H2SO4 + ______
Na2SO4+2HCl=H2SO4+2NaCl