Объяснение:
номер 1:
1. MrH2 = 2
2. MrCH4 = 16
3. MrO2 = 32
4. MrN2O = 44
5. MrN2 = 28
6. MrNH3 = 17
7. MrSO2 = 64
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Объяснение:
номер 1:
1. MrH2 = 2
2. MrCH4 = 16
3. MrO2 = 32
4. MrN2O = 44
5. MrN2 = 28
6. MrNH3 = 17
7. MrSO2 = 64