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2 Fe2O3 + 2 SO3 = 2 Fe2SO3 + 3 O2
I + KBr = K + IBr =>
I + KBr = K + IBr
SiO2 + C + N2 = Si3N4 + CO =>
3 SiO2 + 6 C + 2 N2 = Si3N4 + 6 CO
C + O = CO =>
C + O = CO
C6H5CH2COOH + NH4OH = C6H5CH2COONH4 + H2O =>
C6H5CH2COOH + NH4OH = C6H5CH2COONH4 + H2O
KNO2 + KBr + H2SO4 = Br2 + NO + K2SO4 + H2O =>
2 KNO2 + 2 KBr + 2 H2SO4 = Br2 + 2 NO + 2 K2SO4 + 2 H2O
CHOOH + CH3OH = CHOOCH3 + H2O =>
CHOOH + CH3OH = CHOOCH3 + H2O
Fe{2+} + MnO4{-} + H{+} = Fe{3+} + Mn{2+} + H2O =>
5 Fe{2+} + MnO4{-} + 8 H{+} = 5 Fe{3+} + Mn{2+} + 4 H2O
C8H10N4O2 + O = CO2 + H2O + N2 =>
C8H10N4O2 + 19 O = 8 CO2 + 5 H2O + 2 N2
NaBr + PbO2 + HNO3 = NaNO3 + Br2 + Pb(NO3)2 + H2O =>
2 NaBr + PbO2 + 4 HNO3 = 2 NaNO3 + Br2 + Pb(NO3)2 + 2 H2O
NaClO + H2SO4 + KI = NaCl + I2 + KSO4 + H2O =>
2 NaClO + 2 H2SO4 + 2 KI = 2 NaCl + I2 + 2 KSO4 + 2 H2O
Mg2 + AgNO3 = Ag + Mg3NO3 =>
3 Mg2 + 2 AgNO3 = 2 Ag + 2 Mg3NO3
C10H13Cl2NO3 + O2 = CO2 + NH3 + Cl2 + H2O =>
C10H13Cl2NO3 + 11 O2 = 10 CO2 + NH3 + Cl2 + 5 H2O
Al + OH{-} = AlO2{-} + H2O + e =>
Al + 4 OH{-} = AlO2{-} + 2 H2O + 3e
NaO + HCl = NaCl2 + H2O =>
NaO + 2 HCl = NaCl2 + H2O
SiO2 + KOH = K2SiO3 + H2O =>
SiO2 + 2 KOH = K2SiO3 + H2O
CaF2 + C17H31COOK = (C17H31COO)2Ca + KF =>
CaF2 + 2 C17H31COOK = (C17H31COO)2Ca + 2 KF
Pb + Li{+} = Pb{2+} + Li =>
Pb + 2 Li{+} = Pb{2+} + 2 Li
Cr(OH) + HNO3 = Cr(NO3) + H2O =>
Cr(OH) + HNO3 = Cr(NO3) + H2O
Na2CrO4 + AlCl3 = Al2(CrO4)3 + NaCl =>
3 Na2CrO4 + 2 AlCl3 = Al2(CrO4)3 + 6 NaCl
CU(s) + O2(g) = CUO(s) =>
2 CU(s) + O2(g) = 2 CUO(s)
C6H10O3 + O2 = CO2 + H2O =>
C6H10O3 + 7 O2 = 6 CO2 + 5 H2O
CO2 + H2O + HF = C2H3OF + O2 =>
2 CO2 + H2O + HF = C2H3OF + 2 O2
Pb2(NO3) + KI = Pb2I + K(NO3) =>
Pb2(NO3) + KI = Pb2I + K(NO3)
CHOOH + CH3OH = CHOOCH3 + H2O =>
CHOOH + CH3OH = CHOOCH3 + H2O
NaBr + MgCl2 = MgBr2 + NaCl =>
2 NaBr + MgCl2 = MgBr2 + 2 NaCl
K + Na + (Co(NO2)6) = K2Na(Co(NO2)6) =>
2 K + Na + (Co(NO2)6) = K2Na(Co(NO2)6)
Ni(OH)5 + H3PO4 = Ni3(PO4)5 + H2O =>
3 Ni(OH)5 + 5 H3PO4 = Ni3(PO4)5 + 15 H2O
H3PO3 + K2MnO4 + HCl = H3PO4 + MnCl2 + KCl + H2O =>
2 H3PO3 + K2MnO4 + 4 HCl = 2 H3PO4 + MnCl2 + 2 KCl + 2 H2O
BeCl2 + Mg = MgCl2 + Be =>
BeCl2 + Mg = MgCl2 + Be
SiCl4 + H2O = SiO2 + HCl =>
SiCl4 + 2 H2O = SiO2 + 4 HCl
Mg(OH)2 + Na2SO4 = (MgOH)2SO4 + NaOH =>
2 Mg(OH)2 + Na2SO4 = (MgOH)2SO4 + 2 NaOH
NaNO3 + Cr2O3 + Na2CO3 = Na2CrO4 + NO + CO2 =>
2 NaNO3 + Cr2O3 + Na2CO3 = 2 Na2CrO4 + 2 NO + CO2
hydrochloricacid + iron(iii)oxide = water + iron(iii)chloride =>
6 HCl + Fe2O3 = 3 H2O + 2 FeCl3
PtCl2 + Cl2 + HCl = H2PtCl6 =>
PtCl2 + Cl2 + 2 HCl = H2PtCl6
H + N = H5N =>
5 H + N = H5N
Ca(HCO3)2 + CH3COOH = H2O + CO2 + Ca(C2H3O2)2 =>
Ca(HCO3)2 + 2 CH3COOH = 2 H2O + 2 CO2 + Ca(C2H3O2)2
Al(s) + Br2(l) = AlBr3(s) =>
2 Al(s) + 3 Br2(l) = 2 AlBr3(s)
Al + Pt{2+} = Al{3+} + Pt =>
2 Al + 3 Pt{2+} = 2 Al{3+} + 3 Pt
lithiumcarbonate + cobalt(ii)Bromide = cobalt(ii)carbonate + lithiumbromide =>
Li2CO3 + CoBr2 = CoCO3 + 2 LiBr
Al2O3 = Al + O2 =>
2 Al2O3 = 4 Al + 3 O2
Al*NaOH + H2O = NaAlO2 + H2 =>
2 Al*NaOH + 2 H2O = 2 NaAlO2 + 3 H2
SnO2 + NaCN = Sn + NaOCN =>
SnO2 + 2 NaCN = Sn + 2 NaOCN
W + H2O = W(OH)5 + H2 =>
2 W + 10 H2O = 2 W(OH)5 + 5 H2
NO3 + I2 = IO3 + NO =>
3 NO3 + I2 = 2 IO3 + 3 NO
Cr(NO3)2 + Al2(SO4)3 = Cr(SO4) + Al(NO3)3 =>
3 Cr(NO3)2 + Al2(SO4)3 = 3 Cr(SO4) + 2 Al(NO3)3
FeSO4 + H3PO4 = FePO4 + SO4H3 =>
FeSO4 + H3PO4 = FePO4 + SO4H3
Ni(s) + AlCl3(aq) = Al(s) + NiCl2(aq) =>
3 Ni(s) + 2 AlCl3(aq) = 2 Al(s) + 3 NiCl2(aq)
Mn + CoI2 = MnI3 + Co =>
2 Mn + 3 CoI2 = 2 MnI3 + 3 Co
Cr(CH3COO)2 + NaOH = Cr(OH)2 + NaCH3COO =>
Cr(CH3COO)2 + 2 NaOH = Cr(OH)2 + 2 NaCH3COO
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