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2 H2SO4 + 2 K = K2SO4 + SO2 + 2 H2O
Cu2O + CuO = Cu3O2 =>
Cu2O + CuO = Cu3O2
MnSO4 + H2O = H2SO4 + MnO =>
MnSO4 + H2O = H2SO4 + MnO
Cu2O + CuO = Cu3O2 =>
Cu2O + CuO = Cu3O2
Zn3(PO4)2 + Al2(SO3)3 = ZnSO3 + AlPO4 =>
Zn3(PO4)2 + Al2(SO3)3 = 3 ZnSO3 + 2 AlPO4
AgNO3 + KI = AgI + KNO3 =>
AgNO3 + KI = AgI + KNO3
PbS + O2 = PbO + SO2 =>
2 PbS + 3 O2 = 2 PbO + 2 SO2
CaCN2 + H2O = CaCO3 + NH3 =>
CaCN2 + 3 H2O = CaCO3 + 2 NH3
KCl + SiO2 = SiCl4 + K2O =>
4 KCl + SiO2 = SiCl4 + 2 K2O
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
Pb + C = PbC14 =>
Pb + 14 C = PbC14
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Na22O2 + CO2 = O2 + Na2CO2 =>
Na22O2 + 11 CO2 = O2 + 11 Na2CO2
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
NaCl(aq) + H2SO4(l) = HCl(g) + Na2SO4(aq) =>
2 NaCl(aq) + H2SO4(l) = 2 HCl(g) + Na2SO4(aq)
Cr2(SO4)3 + Br2 + KOH = K2CrO4 + KBr + K2SO4 + H2O =>
Cr2(SO4)3 + 3 Br2 + 16 KOH = 2 K2CrO4 + 6 KBr + 3 K2SO4 + 8 H2O
Fe(OH)3 + Na + HCl = NaCl + Fe + H2O =>
Fe(OH)3 + 3 Na + 3 HCl = 3 NaCl + Fe + 3 H2O
Al2(SO4)3 + Ba(OH)2 = Ba(SO4)3 + Al(OH) =>
Al2(SO4)3 + Ba(OH)2 = Ba(SO4)3 + 2 Al(OH)
(Al2O3)2H2O + H2SO4 = Al2(SO4)3 + H2O =>
(Al2O3)2H2O + 6 H2SO4 = 2 Al2(SO4)3 + 7 H2O
Zn(aq) + Co3 = ZnCo3 =>
Zn(aq) + Co3 = ZnCo3
HCl + (CH3)3CCH2OH = (CH3)3CCH2Cl + H2O =>
HCl + (CH3)3CCH2OH = (CH3)3CCH2Cl + H2O
PbS(l) + O2(s) = PbO(l) + SO2(g) =>
2 PbS(l) + 3 O2(s) = 2 PbO(l) + 2 SO2(g)
Al2(CO3)3 = Al2O3 + CO2 =>
Al2(CO3)3 = Al2O3 + 3 CO2
H2S + B = B2S3 + H2 =>
3 H2S + 2 B = B2S3 + 3 H2
K3PO4 + FeCl3 = Fe3PO4 + KCl3 =>
K3PO4 + 3 FeCl3 = Fe3PO4 + 3 KCl3
Cr(OH)3 + Br2 + KOH = K2CrO4 + KBr + H2O =>
2 Cr(OH)3 + 3 Br2 + 10 KOH = 2 K2CrO4 + 6 KBr + 8 H2O
KO2 + CO = K2CO3 + O2 =>
2 KO2 + CO = K2CO3 + O2
CH3COOH + NaHCO3 + KCl = CH3COOK + CO2 + H2O + NaCl =>
CH3COOH + NaHCO3 + KCl = CH3COOK + CO2 + H2O + NaCl
CaI2(aq) + (NH4)2CO3(aq) = CaCO3(s) + NH4I(aq) =>
CaI2(aq) + (NH4)2CO3(aq) = CaCO3(s) + 2 NH4I(aq)
PbO2(s) + HCl(aq) = Cl2(g) + PbCl2(s) + H2O =>
PbO2(s) + 4 HCl(aq) = Cl2(g) + PbCl2(s) + 2 H2O
C2HClO2Ca + C4H7NO4 + NaOH + H2O = C8H11NO8 + Ca(OH)2 + NaCl =>
2 C2HClO2Ca + C4H7NO4 + 2 NaOH + 2 H2O = C8H11NO8 + 2 Ca(OH)2 + 2 NaCl
H2SO4(aq) + Na2SO3(s) = SO2(g) + Na2SO4(aq) + H2O(l) =>
H2SO4(aq) + Na2SO3(s) = SO2(g) + Na2SO4(aq) + H2O(l)
CuFeS2 + HNO3 = Cu(NO3)2 + Fe(NO3)3 + H2SO4 + NO + HOH =>
3 CuFeS2 + 32 HNO3 = 3 Cu(NO3)2 + 3 Fe(NO3)3 + 6 H2SO4 + 17 NO + 10 HOH
Hg + HNO3 = Hg(NO3)2 + NO + H2O =>
3 Hg + 8 HNO3 = 3 Hg(NO3)2 + 2 NO + 4 H2O
K2CO3(aq) + SnCl4(aq) = SnCO3(s) + K2Cl4(aq) =>
K2CO3(aq) + SnCl4(aq) = SnCO3(s) + K2Cl4(aq)
O3 = O2 =>
2 O3 = 3 O2
Ca3 = Ca4 =>
4 Ca3 = 3 Ca4
Si + HNO3 + HF = SiF4 + NO2 + H2O =>
Si + 4 HNO3 + 4 HF = SiF4 + 4 NO2 + 4 H2O
HClO + KI + HCl = I2 + KCl + H2OHCl =>
HClO + 2 KI + 2 HCl = I2 + 2 KCl + H2OHCl
Na2CO3(aq) + Br2(aq) + H2O(aq) + Fe = Fe(OH)3 + NaBr + CO2 =>
3 Na2CO3(aq) + 3 Br2(aq) + 3 H2O(aq) + 2 Fe = 2 Fe(OH)3 + 6 NaBr + 3 CO2
PbO + O2 = PbO3 =>
PbO + O2 = PbO3
O3 = O2 =>
2 O3 = 3 O2
Av + Cl2 = Av2Cl3 =>
4 Av + 3 Cl2 = 2 Av2Cl3
C7H87O9 + O2 = CO2 + H2O =>
4 C7H87O9 + 97 O2 = 28 CO2 + 174 H2O
CH3NH2 + HCl = HNH2 + CH3Cl =>
CH3NH2 + HCl = HNH2 + CH3Cl
Ca + H2SO4 = CaSO4 + H =>
Ca + H2SO4 = CaSO4 + 2 H
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
NaCl + CO2 = NaClCO2 =>
NaCl + CO2 = NaClCO2
MgO + BaSO4 = MgSO4 + BaO =>
MgO + BaSO4 = MgSO4 + BaO
At + H2 = AtH2 =>
At + H2 = AtH2
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