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3 Na2Cr2O7 + 24 FeSO4 + 42 HCl = 6 CrCl2 + 6 NaCl + 8 Fe2(SO4)3 + 8 FeCl3 + 21 H2O
K2SO2 + Cl2 + H2O = K2SO4 + HCl =>
K2SO2 + 2 Cl2 + 2 H2O = K2SO4 + 4 HCl
PbO + Ca(OCl)2 = CaCl2 + PbO2 =>
2 PbO + Ca(OCl)2 = CaCl2 + 2 PbO2
CuO + NH3 = Cu + HOH + N =>
3 CuO + 2 NH3 = 3 Cu + 3 HOH + 2 N
FeCl3 + KOH = Fe(OH)3 + KCl =>
FeCl3 + 3 KOH = Fe(OH)3 + 3 KCl
Na(s) + H2O(l) = NaOH(aq) + H2(g) =>
2 Na(s) + 2 H2O(l) = 2 NaOH(aq) + H2(g)
Mg2 + NO3 = MgO + Mg3N2 =>
9 Mg2 + 4 NO3 = 12 MgO + 2 Mg3N2
Pb(NO3)2 + H3(AsO4) = PbH(AsO4) + H(NO3) =>
Pb(NO3)2 + H3(AsO4) = PbH(AsO4) + 2 H(NO3)
NS + H2O + O2 = NH4OH + SO3 =>
4 NS + 10 H2O + 3 O2 = 4 NH4OH + 4 SO3
Sr + N2 = Sr3N2 =>
3 Sr + N2 = Sr3N2
HICa(OH)2 = CaIH(OH)2 =>
HICa(OH)2 = CaIH(OH)2
BrCl + Na3PO4 = Br3PO4 + NaCl =>
3 BrCl + Na3PO4 = Br3PO4 + 3 NaCl
CrBr2 = Cr2 + Br =>
2 CrBr2 = Cr2 + 4 Br
NaClO3(g) = NaCl(s) + O2(g) =>
2 NaClO3(g) = 2 NaCl(s) + 3 O2(g)
HSO3 + K4Fe(CN)6 + KMnO4 = CO2 + Fe2(SO4)3 + H2O + HNO3 + KHSO4 + MnSO4 =>
299 HSO3 + 6 K4Fe(CN)6 + 133 KMnO4 = 36 CO2 + 3 Fe2(SO4)3 + 53 H2O + 36 HNO3 + 157 KHSO4 + 133 MnSO4
HNO2 + Hg + H2SO4 = Hg2SO4 + NO + H2O =>
2 HNO2 + 2 Hg + H2SO4 = Hg2SO4 + 2 NO + 2 H2O
BeOC = CO2Be2C =>
2 BeOC = CO2Be2C
CaF2(aq) + NH4Cl(aq) = CaCl2(aq) + NH4F(aq) =>
CaF2(aq) + 2 NH4Cl(aq) = CaCl2(aq) + 2 NH4F(aq)
HCOOH + [Ag(NH3)2]OH = (NH4)2CO3 + Ag + NH3 + H2O =>
HCOOH + 2[Ag(NH3)2]OH = (NH4)2CO3 + 2 Ag + 2 NH3 + H2O
CaNiF = CaFNi =>
CaNiF = CaFNi
Cu + FeO = CuO2 + Fe =>
Cu + 2 FeO = CuO2 + 2 Fe
MgCl2 + HNO3 = Mg(NO3)2 + ClH =>
MgCl2 + 2 HNO3 = Mg(NO3)2 + 2 ClH
Cr2O7{-2} + H{+} + {-} = Cr{+3} + H2O =>
Cr2O7{-2} + 14 H{+} + 6e = 2 Cr{+3} + 7 H2O
ClO2 + HPO2 + H2O = HCl + H3PO4 =>
2 ClO2 + 5 HPO2 + 6 H2O = 2 HCl + 5 H3PO4
HCl + Na2(CO3)2 = NaCl + HCO3 =>
2 HCl + Na2(CO3)2 = 2 NaCl + 2 HCO3
Al + Hg(CH3COO)2 = Al(CH3COO)3 + Hg =>
2 Al + 3 Hg(CH3COO)2 = 2 Al(CH3COO)3 + 3 Hg
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
NaCO3KNO3 = NaNO3KCO3 =>
NaCO3KNO3 = NaNO3KCO3
CH3CH3OH + O2 = H2O + CH3COOH =>
4 CH3CH3OH + 5 O2 = 6 H2O + 4 CH3COOH
Sr + CoCl3 = SrCl2 + Co =>
3 Sr + 2 CoCl3 = 3 SrCl2 + 2 Co
C7H6O2 + C4H10O = C9H10O2 + C2H6O =>
C7H6O2 + C4H10O = C9H10O2 + C2H6O
Mg(HCO3)2 + NaOH = MgCO3 + Na2CO3 + H2O =>
Mg(HCO3)2 + 2 NaOH = MgCO3 + Na2CO3 + 2 H2O
NaHS + KMnO4 + H2O = H2SO4 + KOH + MnO2 + NaOH =>
3 NaHS + 8 KMnO4 + 7 H2O = 3 H2SO4 + 8 KOH + 8 MnO2 + 3 NaOH
Kl + BaCl2 = Ba + KlCl2 =>
Kl + BaCl2 = Ba + KlCl2
NaNO2 + KBr + HCl = Br2 + NO + NaCl + KCl + H2O =>
2 NaNO2 + 2 KBr + 4 HCl = Br2 + 2 NO + 2 NaCl + 2 KCl + 2 H2O
Pb(s) + H2SO4(aq) + PbO2(s) = PbSO4(s) + H2O(l) =>
Pb(s) + 2 H2SO4(aq) + PbO2(s) = 2 PbSO4(s) + 2 H2O(l)
Mn{2+} + MnO4{2-} = MnO2 =>
Mn{2+} + MnO4{2-} = 2 MnO2
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Fe2(SO4)3(aq) + LiOH(aq) = Fe(OH)3(s) + Li2SO4(aq) =>
Fe2(SO4)3(aq) + 6 LiOH(aq) = 2 Fe(OH)3(s) + 3 Li2SO4(aq)
KCl + HCl + K2Cr2O7 + SO2 = CrCl3 + KHSO4 + H2O =>
KCl + 5 HCl + K2Cr2O7 + 3 SO2 = 2 CrCl3 + 3 KHSO4 + H2O
Sb(s) + Br2(l) = SbBr3(s) =>
2 Sb(s) + 3 Br2(l) = 2 SbBr3(s)
CO2 + HO = C6H12O6 + O2 =>
6 CO2 + 12 HO = C6H12O6 + 9 O2
SrSO4 + KNO3 = Sr(NO3)2 + K2SO4 =>
SrSO4 + 2 KNO3 = Sr(NO3)2 + K2SO4
CaS + Tl(NO3)3 = Ca(NO3)2 + Tl2S3 =>
3 CaS + 2 Tl(NO3)3 = 3 Ca(NO3)2 + Tl2S3
CuO + Fe + H2O = FeO(OH) + Cu =>
3 CuO + 2 Fe + H2O = 2 FeO(OH) + 3 Cu
C10H8 + C4H9Br = C14H16 + HBr =>
C10H8 + C4H9Br = C14H16 + HBr
ZnCO3 = ZnO + C2O4 =>
2 ZnCO3 = 2 ZnO + C2O4
Al + CrCl3 = Cr + AlCl3 =>
Al + CrCl3 = Cr + AlCl3
H + Sb + O = HSbO =>
H + Sb + O = HSbO
(H)3(PO4) + Ca(OH)2 = Ca3(PO4)2 + H2O =>
2(H)3(PO4) + 3 Ca(OH)2 = Ca3(PO4)2 + 6 H2O
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