1)cucl2-cu(oh)2-cuo-cuso4-cu 2)ca-cao-ca(oh)2-ca(no3)2-caso4 3)mg-mgo-mgcl2-mg(oh)2-mgo 4)s-so2-so3-h2so4-fe2(so4)3 5)nh3< -n2-> no-no2-hno3 6)c-ch4-ch3cl-c2h6-c2h5cl 7)cac2-c2h2-c2h4-c2h5cl-c2h5oh 8)ch4-h2c=o-c6y12o6-ch3ch2oh-ch3-cooch2ch3
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394
Ответы на вопрос:
1) cucl2 + 2koh → cu(oh)2↓ + 2kcl cu(oh)2 → cuo + h2o cuo + so3 → cuso4 cuso4 + zn → znso4 + cu 2) 2ca + o2 → 2cao cao + h2o → ca(oh)2 ca(oh)2 + zn(no3)2 → ca(no3)2 + zn(oh)2↓ ca(no3)2 + znso4 → caso4↓ + zn(no3)2 3) s + o2 → so2 2so2 + o2 → 2so3 so3 + h2o → h2so4 3h2so4 + 2fe(oh)3 → fe2(so4)3 + 6h2o 4) 2nh3 → n2 + 3h2 n2 + o2 → 2no 2no + o2 → 2no2 4no2 + 2h2o + o2 → 4hno3
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