Объяснение:
M(Ca3N2) = 3*40+2*14 = 148
W(N) = 2*14/M(Ca3N2) = 28/148 = 15,54%
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Объяснение:
M(Ca3N2) = 3*40+2*14 = 148
W(N) = 2*14/M(Ca3N2) = 28/148 = 15,54%