Предмет: Химия, автор: getout1

Помогите пожалуйста получить двумя способами заданные оксиды и подтвердить любые их два химических свойства
MgO
P2O5
H2O
Al2O3

Ответы

Автор ответа: irinushka64

Mg+O2=2MgO Mg+H2O= MgO+H2 MgO -это основной оксид, поэтому взаимодействует с водой и кислотным оксидом или с кислотой
MgO+H2O=Mg(OH)2 MgO+2HCl= MgCi2+H2O MgO+CO2=MgCO3
4P +5O2=2P2O5 Ca3(PO4)2+3SiO2=3CaSiO3+P2O5-это кислотный оксид поэтому взаимодействует с основным оксидом, щелочью, а при взаимодействии с водой образует ортофосфорную кислоту
P2O5 +3H2O=2H3PO4
P2O5+6 NaOH= 2Na3PO4+3 H2O
2H2+O2=2H2O H2O2=H2O+O CuO+H2=Cu+H2O
вода хороший растворитель, многие реакции идут в растворах, при взаимодействии кислотных оксидов с водой образуются кислоты
2 SO2+O2=2SO3 , а при взаимодействии основных оксидов с водой - основания( щелочи)K2O+H2O =2KOH
4+3O2=2Al2O3 2Al(OH)3= Al2O3 +3H2O Cr2O3 +2Al= Al2O3+2Cr амфотерный оксид поэтому взаимодействует и с кислотой и с основанием
Ai2O3 +2 NaOH= 2NaAlO2 при сплавлении
Al2O3 + 6HCl = 2AlCl3+3H2O

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