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2 HI = H2 + I2
KMnO4 + S = SO2 + K2SO4 + Mn2O3 =>
4 KMnO4 + 3 S = SO2 + 2 K2SO4 + 2 Mn2O3
Br2 + I = BrI2 =>
Br2 + 4 I = 2 BrI2
C6H5COOHCH3COONa = C6H5COONaCH3COOH =>
C6H5COOHCH3COONa = C6H5COONaCH3COOH
(NH4)2S + CoF3 = NH4F + Co2S3 =>
3(NH4)2S + 2 CoF3 = 6 NH4F + Co2S3
HI(aq) + K2S(aq) = H2S(aq) + IK(aq) =>
2 HI(aq) + K2S(aq) = H2S(aq) + 2 IK(aq)
O2 + C2OH4 = H2O + CO2 =>
5 O2 + 2 C2OH4 = 4 H2O + 4 CO2
(e)BaCO3(s) = BaO(s) + CO2(g) =>
(e)BaCO3(s) = BaO(s) + CO2(g)
HI = H + I =>
HI = H + I
Na2Cr2O7 + H2SO4 = Cr2(SO4)3 + H2O + O2 + Na2SO4 =>
2 Na2Cr2O7 + 8 H2SO4 = 2 Cr2(SO4)3 + 8 H2O + 3 O2 + 2 Na2SO4
Ni + TiO2 = NiO2 + Ti =>
Ni + TiO2 = NiO2 + Ti
Ca2O2 + H2O = Ca(OH)2 =>
Ca2O2 + 2 H2O = 2 Ca(OH)2
Al(NO3)3 + BaCO3 + H2O = Al(OH)3 + Ba(NO3)2 + CO2 =>
2 Al(NO3)3 + 3 BaCO3 + 3 H2O = 2 Al(OH)3 + 3 Ba(NO3)2 + 3 CO2
H3BO3 + HCl + NaOH = H3BO4 + NaCl + H2 =>
H3BO3 + HCl + NaOH = H3BO4 + NaCl + H2
NaOH + HI = HOH + Na + I =>
NaOH + HI = HOH + Na + I
HCl + H2O = Cl2O + H2 =>
2 HCl + H2O = Cl2O + 2 H2
NaBr + AgNO3 + NH3 = Ag(NH3)Br + NaNO3 =>
NaBr + AgNO3 + NH3 = Ag(NH3)Br + NaNO3
SB + CI3 = SBCI3 =>
SB + CI3 = SBCI3
(HCOO)2Ca + K2Cr2O7 + H2SO4 = CO2 + Ca(SO4)2 + K2SO4 + Cr2(SO4)3 + H2O =>
(HCOO)2Ca + K2Cr2O7 + 6 H2SO4 = 2 CO2 + Ca(SO4)2 + K2SO4 + Cr2(SO4)3 + 7 H2O
Na2CrO4 + H3PO3 + NaOH = Na3PO4 + H2O + Na[Cr(OH)4] =>
2 Na2CrO4 + 3 H3PO3 + 7 NaOH = 3 Na3PO4 + 4 H2O + 2 Na[Cr(OH)4]
Zn(CH3COO)2 + H2NSCNH2 = ZnS + CH3COOH + CH2N2 =>
Zn(CH3COO)2 + H2NSCNH2 = ZnS + 2 CH3COOH + CH2N2
Fe + VO2{+} + H{+} = Fe{2+} + VO{2+} + H2O =>
Fe + 2 VO2{+} + 4 H{+} = Fe{2+} + 2 VO{2+} + 2 H2O
CaH2(s) + H2O(l) = CaO2H2(s) + H2(g) =>
CaH2(s) + 2 H2O(l) = CaO2H2(s) + 2 H2(g)
Mn + OH = MnO2 + H =>
Mn + 2 OH = MnO2 + 2 H
KJ + H2SO4 = S + K2SO4 + J2 + H2O =>
6 KJ + 4 H2SO4 = S + 3 K2SO4 + 3 J2 + 4 H2O
AgNO3(aq)NaNO2(aq) = AgNO2(s)NaNO3(aq) =>
AgNO3(aq)NaNO2(aq) = AgNO2(s)NaNO3(aq)
Ca3(PO4)2 + H2SiF6 + H2O = SiO2 + CaF2 + H3PO4 =>
Ca3(PO4)2 + H2SiF6 + 2 H2O = SiO2 + 3 CaF2 + 2 H3PO4
Ni(OH)3 + HCl = NiCl2 + H2O + Cl2 =>
2 Ni(OH)3 + 6 HCl = 2 NiCl2 + 6 H2O + Cl2
SNCl2 + K2CrO7 + HCl = SNCl4 + KCl + CrCl3 + H2O =>
9 SNCl2 + 2 K2CrO7 + 28 HCl = 9 SNCl4 + 4 KCl + 2 CrCl3 + 14 H2O
KMnO4(aq) + HCl(aq) + Na2SO3(aq) = KCl(aq) + MnCl2(aq) + Na2SO4(aq) + H2O(l) =>
2 KMnO4(aq) + 6 HCl(aq) + 5 Na2SO3(aq) = 2 KCl(aq) + 2 MnCl2(aq) + 5 Na2SO4(aq) + 3 H2O(l)
Si3Li2 + OH + CH4 = SiOH + LiH + C =>
2 Si3Li2 + 6 OH + CH4 = 6 SiOH + 4 LiH + C
CH4 + FeCl3 + Fe2(SiO3)3 = FeSiO3 + CH3Cl + HCl =>
3 CH4 + 2 FeCl3 + 2 Fe2(SiO3)3 = 6 FeSiO3 + 3 CH3Cl + 3 HCl
Na2SO4(aq) + CuCl2(aq) = CuSO4(aq) + NaCl(aq) =>
Na2SO4(aq) + CuCl2(aq) = CuSO4(aq) + 2 NaCl(aq)
AuCl + H2SO4 = Au2SO4 + HCl =>
2 AuCl + H2SO4 = Au2SO4 + 2 HCl
(NH4)2CO3 + Mn(NO3)2 = NH4NO3 + MnCO3 =>
(NH4)2CO3 + Mn(NO3)2 = 2 NH4NO3 + MnCO3
K2S(aq) + Pb(NO3)2(aq) = SPb(aq) + K2(NO3)2(aq) =>
K2S(aq) + Pb(NO3)2(aq) = SPb(aq) + K2(NO3)2(aq)
C7H8 + O = CO2 + H2O =>
C7H8 + 18 O = 7 CO2 + 4 H2O
HCl + Hg2(NO3)2 = H(NO3) + HgCl =>
2 HCl + Hg2(NO3)2 = 2 H(NO3) + 2 HgCl
K2CO3 + CaCl2 = Ca(CO3)2 + K2Cl =>
2 K2CO3 + CaCl2 = Ca(CO3)2 + 2 K2Cl
HCl + KHCo3 = KCl + H2Co3 =>
HCl + KHCo3 = KCl + H2Co3
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
Na2S + FeSO4 = FeS + Na2SO4 =>
Na2S + FeSO4 = FeS + Na2SO4
HC2H3O2 + NaHCO3 = NaC2O2 + CO2 + H2O =>
5 HC2H3O2 + 8 NaHCO3 = 8 NaC2O2 + 2 CO2 + 14 H2O
C9H10O2H2SO4 = C9H10OH2OSO4 =>
C9H10O2H2SO4 = C9H10OH2OSO4
Ni + HNO3 = Ni(NO3)2 + H2O + N2O =>
4 Ni + 10 HNO3 = 4 Ni(NO3)2 + 5 H2O + N2O
HClO2 + LiOH = HOH + LiClO2 =>
HClO2 + LiOH = HOH + LiClO2
K(NO3) + Zn(PO4) = K(PO4) + Zn(NO3) =>
K(NO3) + Zn(PO4) = K(PO4) + Zn(NO3)
Fe + K4[Fe(CN)6] = Fe4[Fe(CN)6] + K =>
4 Fe + K4[Fe(CN)6] = Fe4[Fe(CN)6] + 4 K
Bi2S3 + HNO3 = Bi(NO3)3 + H2O + NO2 + S =>
Bi2S3 + 12 HNO3 = 2 Bi(NO3)3 + 6 H2O + 6 NO2 + 3 S
C6H14O2 + O2 = CO2 + H2O =>
2 C6H14O2 + 17 O2 = 12 CO2 + 14 H2O
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