Вопрос школьника по предмету Химия
35 баллов 8кл химия
Напишіть рівняння реакцій, за допомогою яких можна здійснити перетворення:
магній оксид = магній хлорид = магній карбонат = магній нітрат = магній гідроксид = магній оксид = магній ортофосфат,
Ответ учителя по предмету Химия
Ответ:
1)MgO+2HCl=MgCl2+H2O
2)MaCl2+Na2CO3=MgCO3↓+2NaCl
3)MgCO3+2HNO3=Mg(NO3)2+H2O+CO2↑
4)Mg(NO3)2+2KOH=Mg(OH)2↓+2KNO3
5)Mg(OH)2→t°→MgO+H2O
6)3MgO+P2O5=Mg3(PO4)2
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