Ответ:
Na2S = 78
CuCl = 136
Al2O3 =102
SO3 =80
P2O5 =142
K3PO4 =212
BaSO4 = 233
NaNO3 = 85
Al2(SO4)3 = 342
Ca(NO3)2 = 164
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Ответ:
Na2S = 78
CuCl = 136
Al2O3 =102
SO3 =80
P2O5 =142
K3PO4 =212
BaSO4 = 233
NaNO3 = 85
Al2(SO4)3 = 342
Ca(NO3)2 = 164