Осуществить ряд превращений:
Na -» Na202 -> Na2 О -> NaOH -> Na2 S03 -> S02 -> BaS03
Cu(OH)2 —>CuO ->Cu ->CuO —>CuS04 -> Cu(OH)2
Na -» Na202 -> Na2 О -> NaOH -> Na2 S03 -> S02 -> BaS03
Cu(OH)2 —>CuO ->Cu ->CuO —>CuS04 -> Cu(OH)2
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Answers & Comments
Na2O2 + 2Na = 2Na2O
Na2O + H2O = 2NaOH
2NaOH + SO2 = Na2SO3 + H2O
Na2SO3 = Na2O + SO2 (нагревание)
SO2 + BaO = BaSO3
Cu(OH)2 = CuO + H2O (нагревание)
CuO + H2 = Cu + H2O
2Cu + O2 = 2CuO
CuO + H2SO4 = CuSO4 + H2O
CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4