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svetka1574

ответ смотри во вложении

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arseniisuper97
a) K+2H2O-->2KOH+H2
KOH+HCl--->KCl+H2O
KCl+AgNO3--->KNO3+AgCl
б) 2Pb+O2--->2PbO
PbO+2HNO3--->Pb(NO3)2+H2O
Pb(NO3)2+Zn--->Pb+Zn(NO3)2

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