2Na + H2SO4 = Na2SO4 + H2
2K + 2H2O =2 KOH + H2
Na2O + H2SO4 = Na2SO4 + H2O
CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4
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Verified answer
2Na + H2SO4 = Na2SO4 + H2
2K + 2H2O =2 KOH + H2
Na2O + H2SO4 = Na2SO4 + H2O
CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4