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4 Na2Cr2O7 + 3 H2S + 17 H2SO4 = 4 Cr2(SO4)3 + 8 NaHSO4 + 16 H2O
H + Ni = HNi =>
H + Ni = HNi
Si + H2 + SiCl4 = SiHCl3 =>
Si + 2 H2 + 3 SiCl4 = 4 SiHCl3
K3[FeF6] + Al2(SO4)3 = K3[AlF6] + Fe2(SO4)3 =>
2 K3[FeF6] + Al2(SO4)3 = 2 K3[AlF6] + Fe2(SO4)3
CH2CH2 + KMnO4 + H2O = CH2OHCH2OH + MnO2 + KOH =>
3 CH2CH2 + 2 KMnO4 + 4 H2O = 3 CH2OHCH2OH + 2 MnO2 + 2 KOH
MnO4{-} + S2{-} + H{+} = MnS + S0 + H2O =>
MnO4{-} + 7 S2{-} + 8 H{+} = MnS + 13 S0 + 4 H2O
H2S + PbBr3 = Pb2S3 + HBr =>
3 H2S + 2 PbBr3 = Pb2S3 + 6 HBr
As2O3 + ClO3{-} + H2O = H3AsO4 + Cl{-} =>
3 As2O3 + 2 ClO3{-} + 9 H2O = 6 H3AsO4 + 2 Cl{-}
[Ni(H2O)6]{2+} + C2H4(NH2)2 = [NiC2H4(NH2)2(H2O)4]{2+} + H2O =>
[Ni(H2O)6]{2+} + C2H4(NH2)2 = [NiC2H4(NH2)2(H2O)4]{2+} + 2 H2O
NaOH + CuSO4 = CuO + Na2SO4 + H2O =>
2 NaOH + CuSO4 = CuO + Na2SO4 + H2O
Al(OH)3 + NH4Cl = AlCl3 + NH4OH =>
Al(OH)3 + 3 NH4Cl = AlCl3 + 3 NH4OH
FeCl3 + Zn = FeCl2 + ZnCl2 =>
2 FeCl3 + Zn = 2 FeCl2 + ZnCl2
Si + H2 + SiCl4 = SiHCl3 =>
Si + 2 H2 + 3 SiCl4 = 4 SiHCl3
Cu + N = Cu3N2 =>
3 Cu + 2 N = Cu3N2
Ca + CO3 = Ca3CO3 =>
3 Ca + CO3 = Ca3CO3
C4H10 + HNO3 = C6H10O4 + NO2 + H2O =>
3 C4H10 + 26 HNO3 = 2 C6H10O4 + 26 NO2 + 18 H2O
P4 + AgNO3 + H2O = H3PO4 + Ag + H2NO3 =>
P4 + 10 AgNO3 + 16 H2O = 4 H3PO4 + 10 Ag + 10 H2NO3
HCl(ac) + KOH(ac) = KCl(ac) + H2O(l) =>
HCl(ac) + KOH(ac) = KCl(ac) + H2O(l)
Sr(s) + N2(g) = SrN =>
2 Sr(s) + N2(g) = 2 SrN
SO3 + H3O = S + H2O =>
SO3 + 6 H3O = S + 9 H2O
CsF + Ba = BaF2 + Cs =>
2 CsF + Ba = BaF2 + 2 Cs
C4H8(g) + O2(g) = CO2(g) + H2O(g) =>
C4H8(g) + 6 O2(g) = 4 CO2(g) + 4 H2O(g)
HNO3 + KOH = NO3KOH2 =>
HNO3 + KOH = NO3KOH2
SnCl2 + Na2CO3 = Sn(CO3) + Na2Cl2 =>
SnCl2 + Na2CO3 = Sn(CO3) + Na2Cl2
Ti + Cl2 + H2O = TiO2 + HCl =>
Ti + 2 Cl2 + 2 H2O = TiO2 + 4 HCl
Cd + AgClO4 = CdClO4 + Ag =>
Cd + AgClO4 = CdClO4 + Ag
C13H12O11 + O2 = CO2 + H2O =>
2 C13H12O11 + 21 O2 = 26 CO2 + 12 H2O
Ca(NO3)2 + Na3PO4 = Ca3(PO4)2 + NaNO3 =>
3 Ca(NO3)2 + 2 Na3PO4 = Ca3(PO4)2 + 6 NaNO3
K3[Fe(C2O4)3]*3H2O = K + Fe + C2O4 + H2O =>
K3[Fe(C2O4)3]*3H2O = 3 K + Fe + 3 C2O4 + 3 H2O
NaC2H3O2(s)HCl(aq) = HC2H3O2(aq)NaCl(aq) =>
NaC2H3O2(s)HCl(aq) = HC2H3O2(aq)NaCl(aq)
H2O + MnO4{-} + C2O4{2-} = CO3{-} + MnO2 + OH{-} =>
2 H2O + 4 MnO4{-} + 3 C2O4{2-} = 6 CO3{-} + 4 MnO2 + 4 OH{-}
(CH3)3CCl + H2O + Na2CO3 = (CH3)3CO + NaCl + CO2 =>
46(CH3)3CCl + 9 H2O + 23 Na2CO3 = 48(CH3)3CO + 46 NaCl + 15 CO2
Na2[Ni(CN)4] + Na2S = NaCN + NiS =>
Na2[Ni(CN)4] + Na2S = 4 NaCN + NiS
MgO(s) + HCl(l) = MgCl2 + H2O(l) =>
MgO(s) + 2 HCl(l) = MgCl2 + H2O(l)
HCl + Ni + K2Cr2O7 = KCl + CrCl3 + NiCl2 + H2O =>
14 HCl + 3 Ni + K2Cr2O7 = 2 KCl + 2 CrCl3 + 3 NiCl2 + 7 H2O
Al2O3 + HF = AlF3 + H2O =>
Al2O3 + 6 HF = 2 AlF3 + 3 H2O
K2Cr2O7 + H2SO4 + Na2SO3 = Na2SO4 + K2SO4 + Cr2O3 + H2O =>
K2Cr2O7 + H2SO4 + 3 Na2SO3 = 3 Na2SO4 + K2SO4 + Cr2O3 + H2O
Pb(OH)2 + CH3COOH = (CH3COO)2Pb + H2O =>
Pb(OH)2 + 2 CH3COOH = (CH3COO)2Pb + 2 H2O
W + CH4 = WC + H2 =>
W + CH4 = WC + 2 H2
C6H9NO + O2 = CO2 + H2O + NH3 =>
C6H9NO + 7 O2 = 6 CO2 + 3 H2O + NH3
CO2 + Si = SiO2 + C =>
CO2 + Si = SiO2 + C
SO3 + H3O = S + H2O =>
SO3 + 6 H3O = S + 9 H2O
N + S = NS =>
N + S = NS
Na2HPO4 + H2SO4 = NaH2PO4 + Na2SO4 =>
2 Na2HPO4 + H2SO4 = 2 NaH2PO4 + Na2SO4
Pb(NO3)2 + KBr = KNO3 + PbBr2 =>
Pb(NO3)2 + 2 KBr = 2 KNO3 + PbBr2
Al2C6 + H2O = Al(OH)3 + C2H2 =>
Al2C6 + 6 H2O = 2 Al(OH)3 + 3 C2H2
H2O + NO2 = NH3 + O2 =>
6 H2O + 4 NO2 = 4 NH3 + 7 O2
BaSO4 + H3Po4 = Ba3(Po4)2 + H2SO4 =>
3 BaSO4 + 2 H3Po4 = Ba3(Po4)2 + 3 H2SO4
NO2{-} + Al + OH{-} + H2O = Al(OH)4{-} + NH3 =>
NO2{-} + 2 Al + OH{-} + 5 H2O = 2 Al(OH)4{-} + NH3
Ca2 = Ca5 =>
5 Ca2 = 2 Ca5
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