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2 Ca + O2 = 2 CaO
CaCl2(aq) + NaNO3(aq) = Ca(NO3)2(aq) + NaCl(aq) =>
CaCl2(aq) + 2 NaNO3(aq) = Ca(NO3)2(aq) + 2 NaCl(aq)
Ga + HCl = GaCl3 + H2 =>
2 Ga + 6 HCl = 2 GaCl3 + 3 H2
HIO + NH4OH = NH4 + IO + H2O =>
HIO + NH4OH = NH4 + IO + H2O
K3Fe(CN)6 + H2SO4 = HCN + K2SO4 + Fe2(SO4)3 =>
2 K3Fe(CN)6 + 6 H2SO4 = 12 HCN + 3 K2SO4 + Fe2(SO4)3
FeCl3 + NH(OH)3 = Fe(OH)3 + NHCl3 =>
FeCl3 + NH(OH)3 = Fe(OH)3 + NHCl3
NO2 + HNO3 = NO3 + HNO2 =>
NO2 + HNO3 = NO3 + HNO2
KNO2 + KJ + H2SO4 = NO + J2 + K2SO4 + H2O =>
2 KNO2 + 2 KJ + 2 H2SO4 = 2 NO + J2 + 2 K2SO4 + 2 H2O
KHCO3(aq) + H2S(aq) = K2S(aq) + H2O(l) + CO2(g) =>
2 KHCO3(aq) + H2S(aq) = K2S(aq) + 2 H2O(l) + 2 CO2(g)
K2Cr2O7 + FeSO4 + H2SO4 = Fe{3+} + Cr{3+} + K{+} + SO4{2-} + H2O =>
K2Cr2O7 + 6 FeSO4 + 7 H2SO4 = 6 Fe{3+} + 2 Cr{3+} + 2 K{+} + 13 SO4{2-} + 7 H2O
CO + H2O = CO2 + H2 =>
CO + H2O = CO2 + H2
ZnCO3 + Ba(OH)2 = Zn(OH)2 + BaCO3 =>
ZnCO3 + Ba(OH)2 = Zn(OH)2 + BaCO3
Pb3N2 + NaBr = PbBr2 + Na3N =>
Pb3N2 + 6 NaBr = 3 PbBr2 + 2 Na3N
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
HCl + CaC(O3) = Ca(Cl2) + (H2)O + C(O2) =>
2 HCl + CaC(O3) = Ca(Cl2) + (H2)O + C(O2)
Ba(NO3)2 + H2SO4 = BaSO4 + HNO3 =>
Ba(NO3)2 + H2SO4 = BaSO4 + 2 HNO3
MgCO3(aq) + HNO3(aq) = Mg(NO3)2(aq) + CO2(g) + H2O(l) =>
MgCO3(aq) + 2 HNO3(aq) = Mg(NO3)2(aq) + CO2(g) + H2O(l)
Ca(OH)2 + FeCl2 = Fe(OH)2 + CaCl2 =>
Ca(OH)2 + FeCl2 = Fe(OH)2 + CaCl2
Fe(OH)3 + K2C2O4 + H2C2O4 = K3[Fe(C2O4)3] + H2O =>
2 Fe(OH)3 + 3 K2C2O4 + 3 H2C2O4 = 2 K3[Fe(C2O4)3] + 6 H2O
CaO(s) + HCl(ac) = CaCl2(ac) + H2O =>
CaO(s) + 2 HCl(ac) = CaCl2(ac) + H2O
AgF + RbCl = AgCl + RbF =>
AgF + RbCl = AgCl + RbF
C6H5COOH + O2 = CO2 + H2O =>
2 C6H5COOH + 15 O2 = 14 CO2 + 6 H2O
KOH + HBr = KBr + H2O =>
KOH + HBr = KBr + H2O
C3H7Cl + KOH = C3H6 + KCl + H2O =>
C3H7Cl + KOH = C3H6 + KCl + H2O
CuO(s) + CH3COOH(aq) = Cu(CH3COO)2(aq) + H2O(l) =>
CuO(s) + 2 CH3COOH(aq) = Cu(CH3COO)2(aq) + H2O(l)
CuSe + HNO3 = Cu(NO3)2 + Se + NO + H2O =>
3 CuSe + 8 HNO3 = 3 Cu(NO3)2 + 3 Se + 2 NO + 4 H2O
(NH4)3PO4 + H2O = (NH4)2O + H3PO4 =>
2(NH4)3PO4 + 3 H2O = 3(NH4)2O + 2 H3PO4
C7H8 + HNO3 = C7H5N3O6 + H2O =>
C7H8 + 3 HNO3 = C7H5N3O6 + 3 H2O
C3H6O2 + PCl3 = C3H5OCl + H3PO3 =>
3 C3H6O2 + PCl3 = 3 C3H5OCl + H3PO3
H2 + S = H2S =>
H2 + S = H2S
Al2O3 + H2SO4 = Al2(SO4)3 + H2O =>
Al2O3 + 3 H2SO4 = Al2(SO4)3 + 3 H2O
PbS + O2 = PbO + SO2 =>
2 PbS + 3 O2 = 2 PbO + 2 SO2
CoCl2 + HCl = CoCl3 + H =>
CoCl2 + HCl = CoCl3 + H
Pb + HNO3 = H2 + Pb(NO3)2 =>
Pb + 2 HNO3 = H2 + Pb(NO3)2
NaHCO3 + H2O = Na + H2CO3 + OH = CO2 + H2O + NaOH =>
NaHCO3 + H2O = Na + H2CO3 + OH
C2H5 + Cl2 = C2H4Cl2 + HCl =>
2 C2H5 + 3 Cl2 = 2 C2H4Cl2 + 2 HCl
K2CO3(aq) + Ba(NO3)2(aq) = KNO3(aq) + BaCO3(s) =>
K2CO3(aq) + Ba(NO3)2(aq) = 2 KNO3(aq) + BaCO3(s)
Iron(III)ChloridePotassiumSulfate = Iron(III)SulfatePotassiumChloride =>
Iron(III)ChloridePotassiumSulfate = Iron(III)SulfatePotassiumChloride
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
KAsO2 + KMnO4 + H2O = KAsO3 + MnO2 + KOH =>
3 KAsO2 + 2 KMnO4 + H2O = 3 KAsO3 + 2 MnO2 + 2 KOH
Mg(C2H3O2)2(aq) + Al(s) = Mg(s) + Al(C2H3O2)3(aq) =>
3 Mg(C2H3O2)2(aq) + 2 Al(s) = 3 Mg(s) + 2 Al(C2H3O2)3(aq)
PbS + PbO = Pb + SO2 =>
PbS + 2 PbO = 3 Pb + SO2
CO3{2-}(aq) + H{+}(aq) = CO2(g) + H2O(l) =>
CO3{2-}(aq) + 2 H{+}(aq) = CO2(g) + H2O(l)
HNO2 + CrO4{2-} + H{+} = NO3{-} + Cr{3+} + H2O =>
3 HNO2 + 2 CrO4{2-} + 7 H{+} = 3 NO3{-} + 2 Cr{3+} + 5 H2O
N2H8C2O4 + CaCl2 = CaC2O4 + Cl2N2H8 =>
N2H8C2O4 + CaCl2 = CaC2O4 + Cl2N2H8
C2H5Br + NaNO2 = C2H5NO2 + NaBr =>
C2H5Br + NaNO2 = C2H5NO2 + NaBr
C70 + O2 = CO2 =>
C70 + 70 O2 = 70 CO2
(NH4)3PO4 + H2O = H3PO4 + NH4OH =>
(NH4)3PO4 + 3 H2O = H3PO4 + 3 NH4OH
KI(aq) + AgNO3(aq) = KNO3() + AgI() =>
KI(aq) + AgNO3(aq) = KNO3() + AgI()
Sn{2+} + Al = Al{3+} + Sn =>
3 Sn{2+} + 2 Al = 2 Al{3+} + 3 Sn
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