December 2021 0 30 Report
Допишите реакции: 1) K2CO3+?=CO2+?+?
2) CuCl2+?=HCl+?
3) Pb(NO3)2+?=Pb+?
4) AgNO3+?=NaNO3+?
5)NaCl+?=NaNo3+?
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