40 БАЛЛОВ
Дополните следующие реакции.
1. __К + ___à __K2O
2. CaO + ____à CaCO3
3. CaO + ____àCa(OH)2
4. S + ___à SO2
5. SO2 + __NaOHà _____ + _____
6. SO2 + ____à CaSO3
7. SO2 + ____à H2SO3
8. __Zn + ___à __ ZnO
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