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koshmary
@koshmary
August 2022
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решите, пожалуйста, цепочку превращений! Cu-CuO-CuBr2-Cu(OH )2-Cu (NO3 )2-Cu (OH)2-CuO
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svetka1574
Verified answer
2Cu + O2 -> 2CuO
CuO + 2HBr -> CuBr2 + H2O
CuBr2 + 2NaOH -> Cu(OH)2 + 2NaBr
Cu(OH)2 + 2HNO3 -> Cu(NO3)2 + 2H2O
Cu(NO3)2 + 2NaOH -> Cu(OH)2 + 2NaNO3
Cu(OH)2 -> CuO + H2O
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Answers & Comments
Verified answer
2Cu + O2 -> 2CuOCuO + 2HBr -> CuBr2 + H2O
CuBr2 + 2NaOH -> Cu(OH)2 + 2NaBr
Cu(OH)2 + 2HNO3 -> Cu(NO3)2 + 2H2O
Cu(NO3)2 + 2NaOH -> Cu(OH)2 + 2NaNO3
Cu(OH)2 -> CuO + H2O