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(1)氢氧åé å°éï¼NaOH+H2S=NaHS+H2O
(2)氢氧åé è¿éï¼2NaOH+H2S=Na2S+2H2O
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(1)äºæ°§åç¡«å°éï¼2NaOH + SO2=Na2SO3 + H2O
(2)äºæ°§åç¡«è¿éï¼NaOH + SO2= NaHSO3
(3)äºæ°§åç¡«ééï¼3NaOH + 2SO2= Na2SO3+ NaHSO3 + H2O
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SO2+2H2S=3Sâ+2H2O
3S2- + SO3 2- + 3H2O= 3Sâ + 6OH-
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