Ch3oh+o2-> ch3oh+na-> hcooh+cuo-> hcooh+koh-> ch3cooh+mg-> ch3cooh+na2co3-> ch3cooh+cao-> ch3cooh+koh->
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500
Ответы на вопрос:
2ch3oh + 2na = 2ch3ona + h22hcooh + cuo =cu(hcoo)2 + h2ohcooh + koh = hcook + h2ch3cooh + mg= (ch3 coo)2mg + h22ch3cooh + na2co3 = 2ch3 coona + h2o + co22ch3cooh + cao = (ch3coo)2ca + h2och3cooh + koh = ch3 cook + h2o
1) feso4 + k2s = fes↓ (x1) + k2so4; 2a) 3fes + 8hno3 (оч. разб.) = 3fe(no3)2 + 3s↓ + 2no↑ + 4h2o или 2b) fes + 4hno3 (разб.) = fe(no3)3 + s↓ + no↑ + 2h2o; 3) s + ba = bas (x2); 4) bas + h2so4 (разб.) = baso4↓ + h2s↑; 5) 3h2s + 4o3 = 3h2so4 (x3); 6) cuo + h2so4 = cuso4 + h2o.
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