Ответ:
Mr(Ca(NO₃)₂ = 40 +(14+16·3)·2 = 164
Mr(Fe(OH)₃) = 56 +(16+1)·3 = 107
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Ответ:
Mr(Ca(NO₃)₂ = 40 +(14+16·3)·2 = 164
Mr(Fe(OH)₃) = 56 +(16+1)·3 = 107