azotan(V)glinu
1) 2 Al+6 HNO3--->2 Al(NO3)3+3 H2
2) Al2O3+6 HNO3--->2 Al(NO3)3+3 H2O
3) Al(OH)3+3 HNO3--->Al(NO3)3+3 H2O
4) Al(NO3)3--H2O-->Al3+ +3 NO3-
siarczan(VI)chromu(III)
1) 2 Cr+3 H2SO4--->Cr2(SO4)3+3 H2
2) Cr2O3+3 H2SO4--->Cr2(SO4)3+3 H2O
3) 2 Cr(OH)3+3 H2SO4--->Cr2(SO4)3+6 H2O
4) Cr2(SO4)3--H2O-->2 Cr3+ +3 SO4 2-
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Verified answer
azotan(V)glinu
1) 2 Al+6 HNO3--->2 Al(NO3)3+3 H2
2) Al2O3+6 HNO3--->2 Al(NO3)3+3 H2O
3) Al(OH)3+3 HNO3--->Al(NO3)3+3 H2O
4) Al(NO3)3--H2O-->Al3+ +3 NO3-
siarczan(VI)chromu(III)
1) 2 Cr+3 H2SO4--->Cr2(SO4)3+3 H2
2) Cr2O3+3 H2SO4--->Cr2(SO4)3+3 H2O
3) 2 Cr(OH)3+3 H2SO4--->Cr2(SO4)3+6 H2O
4) Cr2(SO4)3--H2O-->2 Cr3+ +3 SO4 2-