Ответ:
Объяснение:
1) Al2O3 + 6HCl = 2AlCl3 + 3H2O
2) А) 2Al + 6HCl = 2AlCl3 + 3H2 ( 13)
В) 4Al + 3O2 = 2Al2O3 (9)
C) Mg + H2SO4 = MgSO4 + H2 (4)
D) CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4 (5)
E) Cu + S = CuS (3)
1 2 3 4 5
E C D B A
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Verified answer
Ответ:
Объяснение:
1) Al2O3 + 6HCl = 2AlCl3 + 3H2O
2) А) 2Al + 6HCl = 2AlCl3 + 3H2 ( 13)
В) 4Al + 3O2 = 2Al2O3 (9)
C) Mg + H2SO4 = MgSO4 + H2 (4)
D) CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4 (5)
E) Cu + S = CuS (3)
1 2 3 4 5
E C D B A