Цепочка превращений k-koh-k2s-h2s-pbs cu-cuo-cuso4-k2so4-baso4 mg(oh)2-mgo-mgbr2-mg(no3)2-mg(oh)2
Nezox1123
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25.05.2019 04:40
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2KOH+H2S=K2S+2H2O
K2S+2HCL=2KCL+H2S
H2S+PbO=H2O+PbS
2)2Cu+O2=2CuO
CuO+H2SO4=CuSO4+H2O
3CuSO4+2K3PO4=Cu3(PO4)2+3K2SO4
K2SO4+BaO=K2O+BaSO4
3)Mg(OH)2=MgO+H2O
MgO+2HBr=MgBr2+H2O
MgBr2+2AgNO3=Mg(NO3)2+2AgBr
Mg(NO3)2+2KOH=Mg(OH)2+2KNO3
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