Вопрос школьника по предмету Химия
Напишите уравнение реакций соответствующих следующим превращениям SiO2>Si>Mg2si>SiH4>SiO2
Ответ учителя по предмету Химия
SiO2 -> Si + O2
Si + 2Mg -> Mg2Si
Mg2Si + 2H2 -> SiH4 + 2Mg
SiH4 + 2O2 -> SiO2 + 2H2O
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