Ответ:
M(Ca3PO4)2) = 3*40 + 31 + 4*16 = 215.
M(Cu(OH)2) = 64 + 2*1 + 2*16 = 98.
M(H2SO4) = 2*1 + 32 + 4*16 = 98.
M(P2O5) = 2*31 + 5*16 = 142.
*Объяснение: M(Ca)=40. M(P)=31. M(O)=16. M(Cu)=64. M(H)=1. M(S)=32.
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Ответ:
M(Ca3PO4)2) = 3*40 + 31 + 4*16 = 215.
M(Cu(OH)2) = 64 + 2*1 + 2*16 = 98.
M(H2SO4) = 2*1 + 32 + 4*16 = 98.
M(P2O5) = 2*31 + 5*16 = 142.
*Объяснение: M(Ca)=40. M(P)=31. M(O)=16. M(Cu)=64. M(H)=1. M(S)=32.