Ответ:
Объяснение:
Mr(K3PO4) = 39*3+31 + 16*4 = 212
Mr(Ca(OH)2) = 40+16*2+1*2 = 74
Mr(Al2(SO4)3) = 27*2 + 32*3+16*12 = 342
Mr(Fe2O3) = 56 *2 + 16*3 = 160
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Ответ:
Объяснение:
Mr(K3PO4) = 39*3+31 + 16*4 = 212
Mr(Ca(OH)2) = 40+16*2+1*2 = 74
Mr(Al2(SO4)3) = 27*2 + 32*3+16*12 = 342
Mr(Fe2O3) = 56 *2 + 16*3 = 160