Question

many points friends Friends please balance the following equation given 3 all

Answer 1

1) KMnO4 + HCl → KCl + MnCl2 + H2O + Cl2

banced equation :-
2KMnO4 + 16HCl → 2KCl + 2MnCl2 + 8H2O + 5Cl2
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ii) CuO + NH3 → Cu + H2O + N2

balanced eqn ;-

3CuO + 2NH3 → 3Cu + 3H2O + N2

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(iii) Cr2O3 + NaOH + O2 → Na2CrO4 + H2O

balanced eqn :-

2Cr2O3 +8NaOH + 3O2→4Na2CrO4 + 4H2O

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iv) K2Cr2O7 + HCl → KCl + CrCl3 + H2O + Cl2

balanced eqn :-
K2Cr2O7 + 14HCl → 2KCl + CrCl3 + 7H2O + 3Cl2

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(v) Mn3O4 + Al → Al2O3 + Mn

balanced eqn :-

3Mn3O4 + 4Al → 4Al2O3 + 9Mn

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(vi) Fe2S3 + O2 + H2O → Fe(OH)3 + S

balanced eqn :-

4Fe2S3 + 6O2 + 12H2O→ 8Fe(OH)3 + 12S

======================°

(vii) K2Cr2O3 + H2SO4 → K2SO4 + Cr2(SO4)3 + H2O + O2

balanced eqn :-

2K2Cr2O3 + 8H2SO4 →2K2SO4 +2Cr2(SO4)3 + 8 H2O + 3O2

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(viii) NH3 + Cl2 → NH4Cl + N2

balanced eqn :-

8NH3 + 3Cl2 → 6NH4Cl + N2

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(ix) CuCl2 + SO2 + HCl → CuCl + HCl + H2SO4

balanced eqn :-

2CuCl2 + 2H2O + SO2 → 2CuCl + 2HCl + H2SO4

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(x) Br2 + KOH → KBr + KBrO3 + H2O

balanced eqn :-

3Br2 + 6KOH → 5KBr + KBrO3+ 3H2O

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Answer 2

Balanced equations:
1)
2(KMnO4)+16(HCl) = 2(KCl)+2(MnCl2)+8(H2O)+5(Cl2)

2)
3(CuO)+2(NH3) =3(Cu)+3(H2O)+(N2)

3)
2(Cr2O3)+8(NaOH)+3(O2) = 4(Na2CrO4)+4(H2O)

4)
(K2Cr2O7)+14(HCl) = 2(KCl)+2(CrCl3)+7(H2O)+3(Cl2)

5)
3(Mn3O4)+8(Al) = 4(Al2O3)+9Mn

6)
2(Fe2S3)+3O2+6(H2O) = 4{Fe(OH)3}+6S

7)
2(K2Cr2O7)+8(H2SO4) = 2(K2SO4)+2{Cr2(SO4)3}+8(H2O)+3O2

8)
8(NH3)+3Cl2 = 6(NH4Cl)+N2

9)
4(CuCl)+SO2+4(HCl) = 4(CuCl2)+2(H2O)+S

10)
3Br2+6(KOH) = 5(KBr)+(KBrO3)+3(H2O)