Ответ:
1. 2NaOH + SO2 = Na2SO3 + H2O
2. na2co3+so2=na2so3+co2
3. nahso3+naoh=na2so3+h20
4 2nahso3+caoh2=na2so3+caso3
2NaOH + SO2 = Na2SO3 + H2O
Na2S + 3 Na2SO4= 4Na2SO3
H2SO3 + 2NaOH = Na2SO3+ 2H2O
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Ответ:
1. 2NaOH + SO2 = Na2SO3 + H2O
2. na2co3+so2=na2so3+co2
3. nahso3+naoh=na2so3+h20
4 2nahso3+caoh2=na2so3+caso3
Ответ:
2NaOH + SO2 = Na2SO3 + H2O
Na2S + 3 Na2SO4= 4Na2SO3
H2SO3 + 2NaOH = Na2SO3+ 2H2O