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2 Fe + 3 H2SO4 = Fe2(SO4)3 + 3 H2
CaO + SO2 = CaSO3 =>
CaO + SO2 = CaSO3
Mg + Cl2 = MgCl2 =>
Mg + Cl2 = MgCl2
Pb(NO3)2(aq) + NaOH(aq) = NaNO3(aq) + Pb(OH)2(s) =>
Pb(NO3)2(aq) + 2 NaOH(aq) = 2 NaNO3(aq) + Pb(OH)2(s)
Al(OH)3 + C2O4{2-} + H2C2O4 = Al(C2O4)3{3-} + H2O =>
2 Al(OH)3 + 3 C2O4{2-} + 3 H2C2O4 = 2 Al(C2O4)3{3-} + 6 H2O
ZrO(aq) + NaOH(aq) = ZrOH + NaO =>
ZrO(aq) + NaOH(aq) = ZrOH + NaO
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Cu(NO3)2 + KOH = Cu(OH)2 + KNO3 =>
Cu(NO3)2 + 2 KOH = Cu(OH)2 + 2 KNO3
Sb + O2 = Sb4O6 =>
4 Sb + 3 O2 = Sb4O6
Mn(OH)2 + Br2 + NaOH = NaMnO4 + NaBr + H2O =>
2 Mn(OH)2 + 5 Br2 + 12 NaOH = 2 NaMnO4 + 10 NaBr + 8 H2O
CH3CH2CH2NH2 + CH3CH2NH2 = CH3CH2NH3 + CH3CH2CH2NH =>
CH3CH2CH2NH2 + CH3CH2NH2 = CH3CH2NH3 + CH3CH2CH2NH
Cr2(SO4)3 + NaOH = Cr(OH)3 + Na2SO4 =>
Cr2(SO4)3 + 6 NaOH = 2 Cr(OH)3 + 3 Na2SO4
PCl3 = P4 + Cl2 =>
4 PCl3 = P4 + 6 Cl2
Mn7(ag) + (NH4)2S(ag) = (NH4)(ag) + MnS(s) =>
Mn7(ag) + 7(NH4)2S(ag) = 14(NH4)(ag) + 7 MnS(s)
Pb(NO3)2 + (b)NaOH = (c)Pb(OH)2 + (d)NaNO3 =>
Pb(NO3)2 + 2(b)NaOH = (c)Pb(OH)2 + 2(d)NaNO3
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Al(OH)3 + Ba(OH)2 = Ba[Al(OH)4]2 =>
2 Al(OH)3 + Ba(OH)2 = Ba[Al(OH)4]2
K2CO3 + Ca(NO3)2 = K2(NO3)2 + CaCO3 =>
K2CO3 + Ca(NO3)2 = K2(NO3)2 + CaCO3
N5H9 + O2 = N2O5 + H2O =>
2 N5H9 + 17 O2 = 5 N2O5 + 9 H2O
SiO2 + KOH = K2SiO4 + H2 =>
SiO2 + 2 KOH = K2SiO4 + H2
CH3CHCH2 + K2Cr2O7 + H2SO4 = CH3(CO)CH2CH3 + Cr2(SO4)3 + K2SO2 + H2O =>
20 CH3CHCH2 + 3 K2Cr2O7 + 12 H2SO4 = 15 CH3(CO)CH2CH3 + 3 Cr2(SO4)3 + 3 K2SO2 + 12 H2O
Pb(No3)2 + NaCl = PbCl2 + NaNo3 =>
Pb(No3)2 + 2 NaCl = PbCl2 + 2 NaNo3
C6H6 + NaOH = C6H5Na + HOH =>
C6H6 + NaOH = C6H5Na + HOH
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
S8 + C = CS2 =>
S8 + 4 C = 4 CS2
HI + CH3NH2 = NH3 + CH3I =>
HI + CH3NH2 = NH3 + CH3I
Rb + P = Rb3P =>
3 Rb + P = Rb3P
K2Cr2O7 + CH3CHOHCH3 + H2SO4 = Cr2(SO4)3 + K2SO4 + CH3COOH + H2O =>
2 K2Cr2O7 + 2 CH3CHOHCH3 + 8 H2SO4 = 2 Cr2(SO4)3 + 2 K2SO4 + 3 CH3COOH + 10 H2O
Sr(OH)2 + H2CO3 = Sr(HCO3)2 + H2O =>
Sr(OH)2 + 2 H2CO3 = Sr(HCO3)2 + 2 H2O
KOH + C5H12O2 = C5H11O2K + H2O =>
KOH + C5H12O2 = C5H11O2K + H2O
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Pb2O4 + HCl + H2O = PbCl4*6H2O =>
Pb2O4 + 8 HCl + 8 H2O = 2 PbCl4*6H2O
Zn + Cu(NO3)2 = Zn(NO3)2 + Cu =>
Zn + Cu(NO3)2 = Zn(NO3)2 + Cu
C8H9O2 + OH = C7H7O2 + CH4O =>
16 C8H9O2 + 11 OH = 17 C7H7O2 + 9 CH4O
CuSO4 + Ca(SH)2 + H2O + Ca(OH)2 = CuS + CaSO4*2H2O =>
2 CuSO4 + Ca(SH)2 + 2 H2O + Ca(OH)2 = 2 CuS + 2 CaSO4*2H2O
Na3AsO4 + Al2(SO4)3 = Na2SO4 + AlAsO4 =>
2 Na3AsO4 + Al2(SO4)3 = 3 Na2SO4 + 2 AlAsO4
FeS + HCl = FeCl2 + H2S =>
FeS + 2 HCl = FeCl2 + H2S
PbCO3 = PbO + CO2 =>
PbCO3 = PbO + CO2
Ag2SO4 + Pb3(PO4)2 = Ag3PO4 + PbSO4 =>
3 Ag2SO4 + Pb3(PO4)2 = 2 Ag3PO4 + 3 PbSO4
C6H14 + O2 = CO2 + H2O =>
2 C6H14 + 19 O2 = 12 CO2 + 14 H2O
H2O2 + KNO2 + H2SO4 = NO2 + K2SO4 + H2O =>
H2O2 + 2 KNO2 + H2SO4 = 2 NO2 + K2SO4 + 2 H2O
Al2O3 + SO3 = Al2(SO4)3 =>
Al2O3 + 3 SO3 = Al2(SO4)3
CO = C + CO2 =>
2 CO = C + CO2
C6H13SP + O2 = CO2 + H2O + SO2 + P2O5 =>
2 C6H13SP + 23 O2 = 12 CO2 + 13 H2O + 2 SO2 + P2O5
CsOH + At = CsAt + CsAtO + H2O =>
2 CsOH + 2 At = CsAt + CsAtO + H2O
NO2 + O2 + NaOH = H2O + NaNO3 =>
4 NO2 + O2 + 4 NaOH = 2 H2O + 4 NaNO3
RbCl + Sb2O3 + PbCl2 + HCl = Rb4Sb2PbCl12 + H2O =>
4 RbCl + Sb2O3 + PbCl2 + 6 HCl = Rb4Sb2PbCl12 + 3 H2O
NaI + NaNO2 + HCl = I2 + NO + NaCl + H2O =>
2 NaI + 2 NaNO2 + 4 HCl = I2 + 2 NO + 4 NaCl + 2 H2O
C15H32 + O2 = CO2 + H2O =>
C15H32 + 23 O2 = 15 CO2 + 16 H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
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