1. Cu+H2SO4=CuSO4
2. CuSO4+2NaOH=Cu(OH)2+Na2SO4
3. во вложении
4. во вложении
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1. Cu+H2SO4=CuSO4
2. CuSO4+2NaOH=Cu(OH)2+Na2SO4
3. во вложении
4. во вложении
CuSO4+H2o=Cu(OH)2+SO4
Cu(OH)2--t--CuO+H2
CuO--t--Cu+O2