Ответ:
2)
Al
2Al+3H2SO4=Al2(SO4)3+3H2
Al2(SO4)3+6NaOH=2Al(OH)3+3Na2SO4
Al(OH)3+3HNO3=Al(NO3)3+3H2O.
3)
2Al+6HCl=2AlCl3+3H2
AlCl3+3KOH=Al(OH)3+3KCl
2Al(OH)3+Na2O=2NaAlO2+3H2O
4)
2Al+6HBr=2AlBr3+3H2
2AlBr3+3Ba(OH)2=2Al(OH)3+3BaBr2
Al(OH)3+3HCl=AlCl3+3H2O
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Answers & Comments
Ответ:
2)
Al
2Al+3H2SO4=Al2(SO4)3+3H2
Al2(SO4)3+6NaOH=2Al(OH)3+3Na2SO4
Al(OH)3+3HNO3=Al(NO3)3+3H2O.
3)
Al
2Al+6HCl=2AlCl3+3H2
AlCl3+3KOH=Al(OH)3+3KCl
2Al(OH)3+Na2O=2NaAlO2+3H2O
4)
Al
2Al+6HBr=2AlBr3+3H2
2AlBr3+3Ba(OH)2=2Al(OH)3+3BaBr2
Al(OH)3+3HCl=AlCl3+3H2O