Ответ:
Mr[Ca(NO2)2] = Ar[Ca] + Ar[N] * 2 + Ar[O] * 4 = 40.078 + 14.0067 * 2 + 15.9994 * 4 = 132.089 = 132
Объяснение:
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Ответ:
Mr[Ca(NO2)2] = Ar[Ca] + Ar[N] * 2 + Ar[O] * 4 = 40.078 + 14.0067 * 2 + 15.9994 * 4 = 132.089 = 132
Объяснение: