Ответ:
Объяснение:
I2O7
Mr(I2O7) = 127 * 2 + 16 * 7 = 366
NCl3
Mr(NCl3) = 14 + 35,5 * 3 = 120,5
CS2
Mr(CS2) = 12 + 32 * 2 = 76
Al2O3
Mr(Al2O3) = 27 * 2 + 16 * 3 = 102
Mn2O7
Mr(Mn2O7) = 55 * 2 + 16 * 7 = 222
Li2S
Mr(Li2S) = 7 * 2 + 32 = 46
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Ответ:
Объяснение:
I2O7
Mr(I2O7) = 127 * 2 + 16 * 7 = 366
NCl3
Mr(NCl3) = 14 + 35,5 * 3 = 120,5
CS2
Mr(CS2) = 12 + 32 * 2 = 76
Al2O3
Mr(Al2O3) = 27 * 2 + 16 * 3 = 102
Mn2O7
Mr(Mn2O7) = 55 * 2 + 16 * 7 = 222
Li2S
Mr(Li2S) = 7 * 2 + 32 = 46