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3 Ca + 3 H2SO4 = Ca3(SO4)3 + 3 H2
Ca3(PO4) + SiO2 + C = P4 + CaSiO3 + CO =>
4 Ca3(PO4) + 12 SiO2 + 4 C = P4 + 12 CaSiO3 + 4 CO
Al2(SO4)3 + Ca(HO)2 = Al(HO)3 + CaSO4 =>
Al2(SO4)3 + 3 Ca(HO)2 = 2 Al(HO)3 + 3 CaSO4
K2Zn(OH)4 + H2S = Zn(OH)2 + K2S + H2O =>
K2Zn(OH)4 + H2S = Zn(OH)2 + K2S + 2 H2O
AgI + NH4Cl = AgCl + NH4I =>
AgI + NH4Cl = AgCl + NH4I
K + Cl2 = KCl = =>
2 K + Cl2 = 2 KCl
CH3CHOCH3OH = CH3CH(OH)OCH3 =>
CH3CHOCH3OH = CH3CH(OH)OCH3
PbO2 = O2Pb =>
PbO2 = O2Pb
Sn + I2 = SnI4 =>
Sn + 2 I2 = SnI4
F2 + P2 = PF3 =>
3 F2 + P2 = 2 PF3
CH2Cl2 + Cl2 = CHCl2 + HCl =>
2 CH2Cl2 + Cl2 = 2 CHCl2 + 2 HCl
Bi(OH)3 + HNO3 = Bi(NO3)3 + H2O =>
Bi(OH)3 + 3 HNO3 = Bi(NO3)3 + 3 H2O
SnO + HNO3 = Sn(NO3)2 + H2O =>
SnO + 2 HNO3 = Sn(NO3)2 + H2O
NaCO3*H2O = NaOH + HCO3 =>
NaCO3*H2O = NaOH + HCO3
CO2 + H2O = CH9 + O2 =>
4 CO2 + 18 H2O = 4 CH9 + 13 O2
BeO + N2O5 = Be(NO3)2 =>
BeO + N2O5 = Be(NO3)2
OH{-} + Se + Cr(OH)3 = Cr + SeO3{2-} + H2O =>
6 OH{-} + 3 Se + 4 Cr(OH)3 = 4 Cr + 3 SeO3{2-} + 9 H2O
Na2HPO4HCl = NaH2PO4NaCl =>
Na2HPO4HCl = NaH2PO4NaCl
FeBr2 + ZnSO4 = ZnBr2 + FeSO4 =>
FeBr2 + ZnSO4 = ZnBr2 + FeSO4
K2SO4 + Al2(SO4)3 = KAl(SO4)2 =>
K2SO4 + Al2(SO4)3 = 2 KAl(SO4)2
FeCl3 + FeSO4 + NH3 + H2O = Fe3O4(s) + NH4Cl + (NH4)2SO4 =>
2 FeCl3 + FeSO4 + 8 NH3 + 4 H2O = Fe3O4(s) + 6 NH4Cl + (NH4)2SO4
CH3Cl + NaOH = NaCl + CH2 + H2O =>
CH3Cl + NaOH = NaCl + CH2 + H2O
AgNO + KCr = AgCr + KNO =>
AgNO + KCr = AgCr + KNO
AgIO3 + NaBr = AgBr + NaIO3 =>
AgIO3 + NaBr = AgBr + NaIO3
O = O40 =>
40 O = O40
Ag + Fe2(SO4)3 = AgSO4 + Fe2 =>
3 Ag + Fe2(SO4)3 = 3 AgSO4 + Fe2
NH4ClHNo3 = NH4No3HCl =>
NH4ClHNo3 = NH4No3HCl
AsO2{-} + I2 + H2O = I{-} + AsO43{-} + H{+} =>
AsO2{-} + 41 I2 + 41 H2O = 82 I{-} + AsO43{-} + 82 H{+}
NH4Br(s) = NH4(s)Br =>
NH4Br(s) = NH4(s)Br
K2Zn(OH)4 + H2S = Zn(OH)2 + K2S + H2O =>
K2Zn(OH)4 + H2S = Zn(OH)2 + K2S + 2 H2O
Si + Cl2 = SiCl4 =>
Si + 2 Cl2 = SiCl4
K2OCaO = K2CaO2 =>
K2OCaO = K2CaO2
CH3(CH2)14COONa + CaCl2 = (CH3(CH2)14COO)2Ca + NaCl =>
2 CH3(CH2)14COONa + CaCl2 = (CH3(CH2)14COO)2Ca + 2 NaCl
CH4 = C60 + H2 =>
60 CH4 = C60 + 120 H2
Na(s) + N2(g) = NaN3(s) =>
2 Na(s) + 3 N2(g) = 2 NaN3(s)
HBr + LiOH = LiOH2 + Br =>
HBr + LiOH = LiOH2 + Br
BeCl2 + Zn(OH)2 = Be(OH)2 + ZnCl2 =>
BeCl2 + Zn(OH)2 = Be(OH)2 + ZnCl2
C3H6Br2Zn = C3H6ZnBr2 =>
C3H6Br2Zn = C3H6ZnBr2
AlBr3 + Cu = Al + CuBr =>
AlBr3 + 3 Cu = Al + 3 CuBr
C4H8(l) + O2(g) = CO2(g) + H2O =>
C4H8(l) + 6 O2(g) = 4 CO2(g) + 4 H2O
FeCl3 + FeSO4 + NH3 + H2O = Fe3O4 + NH4Cl + (NH4)2SO4 =>
2 FeCl3 + FeSO4 + 8 NH3 + 4 H2O = Fe3O4 + 6 NH4Cl + (NH4)2SO4
Na2HVO4 = Na4V2O7H2O =>
2 Na2HVO4 = Na4V2O7H2O
Ag2S + O2 = Ag2O + SO3 =>
Ag2S + 2 O2 = Ag2O + SO3
C6H4(OH)2 + KBr = C6H4(OH)2Br + K =>
C6H4(OH)2 + KBr = C6H4(OH)2Br + K
H{+} + Al = Al3{+} + H2 =>
2 H{+} + 6 Al = 2 Al3{+} + H2
CHO2 + KOH = KCO2 + HOH =>
CHO2 + KOH = KCO2 + HOH
NH4CH3COO + HgNO3 = HgCH3COO + NO3NH4 =>
NH4CH3COO + HgNO3 = HgCH3COO + NO3NH4
Na2[Zn(OH)4] + NH4Cl = ZnCl2 + NaOH + NH3 + H2O =>
Na2[Zn(OH)4] + 2 NH4Cl = ZnCl2 + 2 NaOH + 2 NH3 + 2 H2O
TlCl3 + Na2SO3 + H2O = TlCl + Na2SO4 + Cl{-} + H{+} =>
TlCl3 + Na2SO3 + H2O = TlCl + Na2SO4 + 2 Cl{-} + 2 H{+}
H2PtCl6 + NaNO3 = PtO2 + NO2 + NaCl + HNO3 + O2 =>
H2PtCl6 + 6 NaNO3 = PtO2 + 4 NO2 + 6 NaCl + 2 HNO3 + O2
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