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4 Zn = Zn4
AgNO3 + Ca(OH)2 = AgOH + Ca(NO3)2 =>
2 AgNO3 + Ca(OH)2 = 2 AgOH + Ca(NO3)2
AgCl + NaOH = Ag + NaCl + H2O + O2 =>
4 AgCl + 4 NaOH = 4 Ag + 4 NaCl + 2 H2O + O2
Al2S3 + O2 = Al2O2 + S3O =>
2 Al2S3 + 3 O2 = 2 Al2O2 + 2 S3O
Pb(NO3)2 + NaI = PbI2 + Na(NO3) =>
Pb(NO3)2 + 2 NaI = PbI2 + 2 Na(NO3)
MgCaCO3 = MgCO3Ca =>
MgCaCO3 = MgCO3Ca
C138 = C2 =>
C138 = 69 C2
K2MoO4 + (NH4)2S + H2O = K2MoS4 + NH3*H2O =>
K2MoO4 + 4(NH4)2S + 4 H2O = K2MoS4 + 8 NH3*H2O
N3H12PO4 = PH3O4 + NH3 =>
N3H12PO4 = PH3O4 + 3 NH3
K2MoO4 + (NH4)2S + H2O = K2MoS4 + NH3*H2O =>
K2MoO4 + 4(NH4)2S + 4 H2O = K2MoS4 + 8 NH3*H2O
WO4 + H = W12O41 + H2O =>
12 WO4 + 14 H = W12O41 + 7 H2O
CaMg(CO3)2 + H2CO3 = Ca{2+} + Mg{2+} + HCO3{-} =>
CaMg(CO3)2 + 2 H2CO3 = Ca{2+} + Mg{2+} + 4 HCO3{-}
H2SO3 + SnCl2 + HCl = SnS + SnCl4 + H2O =>
H2SO3 + 4 SnCl2 + 4 HCl = SnS + 3 SnCl4 + 3 H2O
K + Br2 = KBr =>
2 K + Br2 = 2 KBr
Cr3(SO4)2 + K3(PO4) = Cr3(PO4)2 + K3(SO4) =>
Cr3(SO4)2 + 2 K3(PO4) = Cr3(PO4)2 + 2 K3(SO4)
S2 + N2 = N2S5 =>
5 S2 + 2 N2 = 2 N2S5
K + PbI2 = KI + Pb =>
2 K + PbI2 = 2 KI + Pb
P2O2 = P3O3 =>
3 P2O2 = 2 P3O3
K3PO4 + Sr(OH)2 = Sr3(PO4)2 + KOH =>
2 K3PO4 + 3 Sr(OH)2 = Sr3(PO4)2 + 6 KOH
H2C2O4 + K2C2O4 + K2Cr2O7 = K3Cr(C2O4)3 + H2O + CO2 =>
7 H2C2O4 + 2 K2C2O4 + K2Cr2O7 = 2 K3Cr(C2O4)3 + 7 H2O + 6 CO2
NCS{-} + NO2{-} + H{+} = CO2 + S04{2-} + NO + H2O =>
4 NCS{-} + 26 NO2{-} + 28 H{+} = 4 CO2 + S04{2-} + 30 NO + 14 H2O
(NH2)2 = NH2 =>
(NH2)2 = 2 NH2
CrCl3 + NaOH = Na3[Cr(OH)6] + NaCl =>
CrCl3 + 6 NaOH = Na3[Cr(OH)6] + 3 NaCl
C5H9NO4 + O2 = CO2 + H2O + NO =>
4 C5H9NO4 + 23 O2 = 20 CO2 + 18 H2O + 4 NO
KClO3 + H2O2 = KClO4 + H2O =>
KClO3 + H2O2 = KClO4 + H2O
Cl2(g) + Nal(aq) + NaOH(aq) = NaCl(aq) + NalO3(aq) + H2O =>
3 Cl2(g) + Nal(aq) + 6 NaOH(aq) = 6 NaCl(aq) + NalO3(aq) + 3 H2O
KCrO3 + HCl = KCl + CrCl3 + H2O + Cl2 =>
KCrO3 + 6 HCl = KCl + CrCl3 + 3 H2O + Cl2
H2C2O4 + KMnO4 = CO2 + K2O + MnO + H2O =>
5 H2C2O4 + 2 KMnO4 = 10 CO2 + K2O + 2 MnO + 5 H2O
FeCl3 + (Nh4)2S = Fe2S3 + Nh4Cl =>
2 FeCl3 + 3(Nh4)2S = Fe2S3 + 6 Nh4Cl
CH3CH2CHCHCH2CH3 + KMnO4 + H2SO4 = K2SO4 + MnSO4 + CH3CH2COOH + H2O =>
5 CH3CH2CHCHCH2CH3 + 8 KMnO4 + 12 H2SO4 = 4 K2SO4 + 8 MnSO4 + 10 CH3CH2COOH + 12 H2O
HCI = H + CI =>
HCI = H + CI
Hg + NH4Cl = Hg2Cl2 + NH4 =>
2 Hg + 2 NH4Cl = Hg2Cl2 + 2 NH4
SIHF = SIFH =>
SIHF = SIFH
C7H9 + HNO3 = C7H6(NO2)3 + H2O =>
C7H9 + 3 HNO3 = C7H6(NO2)3 + 3 H2O
Sn + HCI = SnCI + H2 =>
2 Sn + 2 HCI = 2 SnCI + H2
Fe(S)2 + (O)2 = (Fe)2(O)3 + S(O)2 =>
4 Fe(S)2 + 11(O)2 = 2(Fe)2(O)3 + 8 S(O)2
FeCl3 + (Nh4)2S = Fe2S3 + Nh4Cl =>
2 FeCl3 + 3(Nh4)2S = Fe2S3 + 6 Nh4Cl
H2O + CO + Cl2 = HCl + CO2 =>
H2O + CO + Cl2 = 2 HCl + CO2
Cr(C2H3O2)3 + (NH4)2CO3 = Cr2(CO3)3 + NH4(C2H3O2) =>
2 Cr(C2H3O2)3 + 3(NH4)2CO3 = Cr2(CO3)3 + 6 NH4(C2H3O2)
Co59 = Co60 =>
60 Co59 = 59 Co60
CaCO3 + Na2O = Na2CO3 + CaO =>
CaCO3 + Na2O = Na2CO3 + CaO
(CuOH)2SO4 = Cu(OH)2CuSO4 =>
(CuOH)2SO4 = Cu(OH)2CuSO4
Hg + NH4Cl = Hg2Cl2 + NH4 =>
2 Hg + 2 NH4Cl = Hg2Cl2 + 2 NH4
C17H36 + H2O = CH4 + CO2 =>
C17H36 + 8 H2O = 13 CH4 + 4 CO2
SO3 + ClO = SO4 + Cl2 =>
2 SO3 + 2 ClO = 2 SO4 + Cl2
NaHCO3(s) + HC2H3O2 = NaC2H3O2(aq) + H2CO3(aq) =>
NaHCO3(s) + HC2H3O2 = NaC2H3O2(aq) + H2CO3(aq)
CH3 + COONa + H2O = CH3COOH + NaOH =>
CH3 + COONa + H2O = CH3COOH + NaOH
C14H18N2 + O5 = CO2 + H2O + N2 =>
5 C14H18N2 + 37 O5 = 70 CO2 + 45 H2O + 5 N2
CH3CH2OH + KMnO4 + KOH = CH3COOH + K2MnO4 + H2O =>
CH3CH2OH + 4 KMnO4 + 4 KOH = CH3COOH + 4 K2MnO4 + 3 H2O
HCl + Fe2O3 = FeCl3 + H2O =>
6 HCl + Fe2O3 = 2 FeCl3 + 3 H2O
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