Các cậu giúp mình với hứa votheo 5sao và câu trả lời hay nhất Câu 1 Al+HNO3==>Al(NO3)3+NxOy+H2O Câu 2 FexOy+HNO3==>Fe(NO3)3+NO+H2O Câu 3 FexOy+H2SO4==>Fe2(SO4)3+SO2+H2O
2 câu trả lời
Đáp án:
1/ Al + HNO3 → Al(NO3)3 + NxOy + H2O
(5x-2y)Al + (18x-6y)HNO3 → (5x-2y)Al(NO3)3 + 3NxOy + (9x-3y)H2O
2/ FexOy + HNO3 → Fe(NO3)3 + NO + H2O
3FexOy + (12x-2y)HNO3 → 3xFe(NO3)3 + (3x-2y)NO + (6x-y)H2O
3/ FexOy + H2SO4 → Fe2(SO4)3 + SO2 + H2O
2FexOy + (6x-2y)H2SO4 → xFe2(SO4)3 + (3x-2y)SO2 + (6x-2y)H2O
Al->Al+3 +3e .(5x-2y)
xN+5 + (5x-2y)e ->xN+2y/x .3
->(5x-2y)Al+(18x-6y)HNO3->(5x-2y)Al(NO3)3+3NxOy+(9x-3y)H2O
xFe+2y/x ->xFe+3 +(3x-2y)e .3
N+5 + 3e->N+2 .(3x-2y)
->3FexOy+(12x-2y)HNO3->3xFe(NO3)3+(3x-2y)NO+(6x-y)H2O
xFe+2y/x ->xFe+3 +(3x-2y)e .2
S+6 +2e ->S+4 .(3x-2y)
->2FexOy+(6x-2y)H2SO4->xFe2(SO4)3+(3x-2y)SO2+(6x-2y)H2O
