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2 Cr + 3 SnCl2 = Sn3Cr2 + 6 Cl
Na2S + NaClO = Na2SO4 + NaCl =>
Na2S + 4 NaClO = Na2SO4 + 4 NaCl
As2S3 = As4 + S8 =>
8 As2S3 = 4 As4 + 3 S8
K2Cr3O7 + SNCl2 + HCl = CrCl3 + SNCl4 + KCl + H2O =>
2 K2Cr3O7 + 3 SNCl2 + 28 HCl = 6 CrCl3 + 3 SNCl4 + 4 KCl + 14 H2O
K3[Cr(OH)6] + HNO3 = KNO3 + H2O + Cr(NO3)3 =>
K3[Cr(OH)6] + 6 HNO3 = 3 KNO3 + 6 H2O + Cr(NO3)3
MCl = M + Cl2 =>
2 MCl = 2 M + Cl2
B + H2SO4 = BSO4 + H2O + SO2 =>
B + 2 H2SO4 = BSO4 + 2 H2O + SO2
CrO4{2+} + K{-} = Cr2O7{2+} + K2O =>
2 CrO4{2+} + 2 K{-} = Cr2O7{2+} + K2O
C6H6O + OH = C6H5O + H2O =>
C6H6O + OH = C6H5O + H2O
Mg + H2CO3 = MgCO3 + H =>
Mg + H2CO3 = MgCO3 + 2 H
KI + BiCl3 = KCl + BiI3 =>
3 KI + BiCl3 = 3 KCl + BiI3
Sn + CH3COOH = SnCH3COO + H2 =>
2 Sn + 2 CH3COOH = 2 SnCH3COO + H2
Al(OH)3 + HIO = AlIO2 + H2O =>
Al(OH)3 + HIO = AlIO2 + 2 H2O
Bi + HNO3 = Bi(NO3)3 + NO2 + H2O =>
Bi + 6 HNO3 = Bi(NO3)3 + 3 NO2 + 3 H2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
NaHCO3(s) + H2SO4(l) = Na2SO4(aq) + H2O(l) + CO2(g) =>
2 NaHCO3(s) + H2SO4(l) = Na2SO4(aq) + 2 H2O(l) + 2 CO2(g)
NaHCO3 + HC2H3O2 = HCO3(C2H3O2)2 + NaH2 =>
NaHCO3 + 2 HC2H3O2 = HCO3(C2H3O2)2 + NaH2
Zn(OH)2 + NH3 = Zn(NH3)4 + OH =>
Zn(OH)2 + 4 NH3 = Zn(NH3)4 + 2 OH
F + O = F2O =>
2 F + O = F2O
PbSO4 + NaOH = PbOH + NaSO4 =>
PbSO4 + NaOH = PbOH + NaSO4
Pb + HNO3 + HCl = PbCl4 + NO + H2O =>
3 Pb + 4 HNO3 + 12 HCl = 3 PbCl4 + 4 NO + 8 H2O
Mg + AIF = MgF2 + AI =>
Mg + 2 AIF = MgF2 + 2 AI
C4H10O = C4H8O + H2 =>
C4H10O = C4H8O + H2
AuI3 = Au3 + I =>
3 AuI3 = Au3 + 9 I
Pb(OH)4 + NaOH = Na2PbO3 + H2O =>
Pb(OH)4 + 2 NaOH = Na2PbO3 + 3 H2O
C12H22O11 + CH4N2O = C21H23NO5 + H2O + O2 =>
41 C12H22O11 + 12 CH4N2O = 24 C21H23NO5 + 199 H2O + 72 O2
HNO2 + KMnO4 + HCl = KNO3 + KCl + Mn(NO3)2 + H2O =>
5 HNO2 + 2 KMnO4 + HCl = KNO3 + KCl + 2 Mn(NO3)2 + 3 H2O
P4 + Ag2O = Ag + P2O5 =>
P4 + 10 Ag2O = 20 Ag + 2 P2O5
Cu(CH3COO)2 = CuO + (CH3)2CO + CO2 =>
Cu(CH3COO)2 = CuO + (CH3)2CO + CO2
H25 + NaOH = Na + H2O =>
H25 + 25 NaOH = 25 Na + 25 H2O
HClO + NaOH = NaClO3 + NaCl + H2O =>
3 HClO + 3 NaOH = NaClO3 + 2 NaCl + 3 H2O
PbCO3 + CH3COOH = Pb(CH3COO)2 + CO2 + H2O =>
PbCO3 + 2 CH3COOH = Pb(CH3COO)2 + CO2 + H2O
Cl + AlI = AlCl3 + I =>
3 Cl + AlI = AlCl3 + I
H2SiF6 + NaOH = NaF + Na2SiO3 + H2O =>
H2SiF6 + 8 NaOH = 6 NaF + Na2SiO3 + 5 H2O
Na + O + H2O = NaOH =>
2 Na + O + H2O = 2 NaOH
C3H8(g) + O2 = CO2(g) + H2O(g) =>
C3H8(g) + 5 O2 = 3 CO2(g) + 4 H2O(g)
HI + Pt(OH)4 = PtI4 + H2O =>
4 HI + Pt(OH)4 = PtI4 + 4 H2O
C8H16(g) + O2(g) = CO2(g) + H2O(l) =>
C8H16(g) + 12 O2(g) = 8 CO2(g) + 8 H2O(l)
H2OOCCOO + OH = OOCCOO + H2O =>
H2OOCCOO + 2 OH = OOCCOO + 2 H2O
C3H5N3O + O2 = CO2 + H2O + N2 =>
4 C3H5N3O + 15 O2 = 12 CO2 + 10 H2O + 6 N2
C2H3O2Br + O2 = CO + H2O + Br2 =>
4 C2H3O2Br + 3 O2 = 8 CO + 6 H2O + 2 Br2
HAuCl4 + CoCO3 = Co(AuCl4)2 + CO2 + H2O =>
2 HAuCl4 + CoCO3 = Co(AuCl4)2 + CO2 + H2O
K(NO3) + Zn3(PO4) = K3(PO4) + Zn(NO3) =>
3 K(NO3) + Zn3(PO4) = K3(PO4) + 3 Zn(NO3)
H2SeO4 = H2 + SeO4 =>
H2SeO4 = H2 + SeO4
H3AsO4 + SrS = H2S + Sr3(AsO4)2 =>
2 H3AsO4 + 3 SrS = 3 H2S + Sr3(AsO4)2
Mn + K4[Fe(CN)6] = Mn2[Fe(CN)6] + K =>
2 Mn + K4[Fe(CN)6] = Mn2[Fe(CN)6] + 4 K
Al + HF = AlF3 + H2 =>
2 Al + 6 HF = 2 AlF3 + 3 H2
BaO(s) + HCl(aq) = BaCl2(aq) + H2O(l) =>
BaO(s) + 2 HCl(aq) = BaCl2(aq) + H2O(l)
K3Fe(CN)6 = K{+} + Fe(CN)6{3-} =>
K3Fe(CN)6 = 3 K{+} + Fe(CN)6{3-}
Ca + Br2 = CaBr2 =>
Ca + Br2 = CaBr2
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