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2 CrO3 + 3 MnO = Cr2O3 + 3 MnO2
B + I = BI3 =>
B + 3 I = BI3
Cr(s) + HCl(aq) = CrCl2(aq) + H2(g) =>
Cr(s) + 2 HCl(aq) = CrCl2(aq) + H2(g)
(NH4)2S + Ba(OH)2 = BaS + NH4OH =>
(NH4)2S + Ba(OH)2 = BaS + 2 NH4OH
NaClO + H2O = HClO + NaOH =>
NaClO + H2O = HClO + NaOH
B + I = BI =>
B + I = BI
S2O3{2-} + ClO{-} + OH{-} = SO4{2-} + Cl{-} + H2O =>
S2O3{2-} + 4 ClO{-} + 2 OH{-} = 2 SO4{2-} + 4 Cl{-} + H2O
()Ca(s) + ()O2(g) = ()CaO(s) =>
2()Ca(s) + ()O2(g) = 2()CaO(s)
P4 + S8 = P2S5 =>
4 P4 + 5 S8 = 8 P2S5
Cu + HNO3 = Cu(NO3)2 + H2O + NO2 =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 H2O + 2 NO2
K2FeO4 + H2SO4 = Fe2(SO4)3 + K2SO4 + H2O + O2 =>
4 K2FeO4 + 10 H2SO4 = 2 Fe2(SO4)3 + 4 K2SO4 + 10 H2O + 3 O2
CaO + SO2 = CaSO3 =>
CaO + SO2 = CaSO3
Cr(s) + HCl(aq) = CrCl(aq) + H2(g) =>
2 Cr(s) + 2 HCl(aq) = 2 CrCl(aq) + H2(g)
BeCl2 + NaHCO3 = BeCO3 + NaCl + HCl =>
BeCl2 + NaHCO3 = BeCO3 + NaCl + HCl
(NH4)(NO3) + NaOH = Na(NO3) + NH4 + H2O =>
9(NH4)(NO3) + 10 NaOH = 10 Na(NO3) + 8 NH4 + 7 H2O
Ni(s) + CuSO4(aq) = Cu(s) + Ni(SO4)(aq) =>
Ni(s) + CuSO4(aq) = Cu(s) + Ni(SO4)(aq)
H2 + NO = H2O + N2 =>
2 H2 + 2 NO = 2 H2O + N2
Li2S(s) = Li(s) + S8(s) =>
8 Li2S(s) = 16 Li(s) + S8(s)
Na2HPO4 = Na4P2O7 + H2O =>
2 Na2HPO4 = Na4P2O7 + H2O
NaClO + H2O = HOCl + NaOH =>
NaClO + H2O = HOCl + NaOH
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
Ni(NO3)2 = NiO + NO2 + O2 =>
2 Ni(NO3)2 = 2 NiO + 4 NO2 + O2
(NH4)2S + Ba(OH)2 = NH4(OH) + BaS =>
(NH4)2S + Ba(OH)2 = 2 NH4(OH) + BaS
FeS + HCl(aq) = FeCl2(aq) + H2S =>
FeS + 2 HCl(aq) = FeCl2(aq) + H2S
AgNO3 + FeCl3 = AgCl + Fe(NO3)3 =>
3 AgNO3 + FeCl3 = 3 AgCl + Fe(NO3)3
Bi(NO3)3 + Na2S = Bi2S3 + NaNO3 =>
2 Bi(NO3)3 + 3 Na2S = Bi2S3 + 6 NaNO3
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Li2S(s) = Li(s) + S(s) =>
Li2S(s) = 2 Li(s) + S(s)
PBO + Ca = PB + CaO =>
PBO + Ca = PB + CaO
PbO2 + Cr2(SO4)3 + NaOH = Na2[Pb(OH)4] + Na2CrO4 + H2O + Na2SO4 =>
3 PbO2 + Cr2(SO4)3 + 16 NaOH = 3 Na2[Pb(OH)4] + 2 Na2CrO4 + 2 H2O + 3 Na2SO4
CuBr2 + KI = CuI + KBr + I2 =>
2 CuBr2 + 4 KI = 2 CuI + 4 KBr + I2
KMnO4 + H2SO3 + H2O = MnO2 + H2SO4 + KOH =>
2 KMnO4 + 3 H2SO3 + H2O = 2 MnO2 + 3 H2SO4 + 2 KOH
FeS + HCl(aq) = FeCl2(aq) + H2S(g) =>
FeS + 2 HCl(aq) = FeCl2(aq) + H2S(g)
K4(Fe(CN)6) + FeCl3 = K4 + FeCl3(Fe(CN)6) =>
K4(Fe(CN)6) + FeCl3 = K4 + FeCl3(Fe(CN)6)
C2H5COOH + MgCO3 = (C2H5COOH)2Mg + H2O + CO2 =>
15 C2H5COOH + 7 MgCO3 = 7(C2H5COOH)2Mg + 3 H2O + 10 CO2
CuBr2 + KI = Cu + KBr + I2 =>
CuBr2 + 2 KI = Cu + 2 KBr + I2
MnI = Mn + I =>
MnI = Mn + I
FeS + HCl(aq) = FeCl2 + H2S =>
FeS + 2 HCl(aq) = FeCl2 + H2S
K3[Fe(CN)6] + KCNS = K4[Fe(CN)6] + CNS =>
K3[Fe(CN)6] + KCNS = K4[Fe(CN)6] + CNS
N2(g) + H2(g) = NH3(g) =>
N2(g) + 3 H2(g) = 2 NH3(g)
V2O5 + HCl = VOCl3 + H2O =>
V2O5 + 6 HCl = 2 VOCl3 + 3 H2O
CuBr2 + KI = CuBr + KBr + I2 =>
2 CuBr2 + 2 KI = 2 CuBr + 2 KBr + I2
NO2 = O2 + N2* =>
2 NO2 = 2 O2 + N2*
Mg(NO3)2*6H2O = Mg(NO3)2 + H2O =>
Mg(NO3)2*6H2O = Mg(NO3)2 + 6 H2O
Cr(NO3)3 + H2O = Cr + O2 + HNO3 =>
4 Cr(NO3)3 + 6 H2O = 4 Cr + 3 O2 + 12 HNO3
SbCl3 + Na2CO3 + H2O = SbO(OH) + NaCl + CO2 =>
2 SbCl3 + 3 Na2CO3 + H2O = 2 SbO(OH) + 6 NaCl + 3 CO2
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
NaCl + H2SO4 = Na2SO4 + HCl =>
2 NaCl + H2SO4 = Na2SO4 + 2 HCl
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
CaCl2 + K2HPO4 = CaHPO4 + KCl =>
CaCl2 + K2HPO4 = CaHPO4 + 2 KCl
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