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4 Al + 3 O2 = 2 Al2O3
Cr2 + NiSO4 = CrSO4 + Ni2 =>
Cr2 + 2 NiSO4 = 2 CrSO4 + Ni2
Ca(OH)2 + Al(OH)3 + HSCN = Ca3(Al(SCN)6)2 + H2O =>
3 Ca(OH)2 + 2 Al(OH)3 + 12 HSCN = Ca3(Al(SCN)6)2 + 12 H2O
Pb(NO3)2(at) + KBr(aq) = KNO3(am) + PbBr2(s) =>
Pb(NO3)2(at) + 2 KBr(aq) = 2 KNO3(am) + PbBr2(s)
KMnO4 + H2SO4 + KI + C6H10O5 = K2SO4 + H2O + C6H10O5I2 + MnSO4 =>
2 KMnO4 + 8 H2SO4 + 10 KI + 5 C6H10O5 = 6 K2SO4 + 8 H2O + 5 C6H10O5I2 + 2 MnSO4
Fe2O3 + BaO = BaFe2O4 =>
Fe2O3 + BaO = BaFe2O4
ZnI2 + H3PO4 = Zn3(PO4)2 + HI =>
3 ZnI2 + 2 H3PO4 = Zn3(PO4)2 + 6 HI
H2SO4 + B(OH)2 = B2(SO4)2 + H2O =>
2 H2SO4 + 2 B(OH)2 = B2(SO4)2 + 4 H2O
KOH + S + H2O = K2SO3 + H2 =>
2 KOH + S + H2O = K2SO3 + 2 H2
CH4 + Hg = HgH + C =>
CH4 + 4 Hg = 4 HgH + C
MgO + AgNO3 = Ag2O + Mg(NO3)2 =>
MgO + 2 AgNO3 = Ag2O + Mg(NO3)2
XCaCl2 + Na3PO4 = XCaPO4 + Cl2Na3 =>
XCaCl2 + Na3PO4 = XCaPO4 + Cl2Na3
H2CO3 + KOH = KCO + HO =>
H2CO3 + KOH = KCO + 3 HO
K2Cr2O7 + Na2S + H2O = Cr2(OH)3 + S + KOH + NaOH =>
2 K2Cr2O7 + 9 Na2S + 14 H2O = 2 Cr2(OH)3 + 9 S + 4 KOH + 18 NaOH
MnCl2 + H2O2 + KOH = KCl + MnO2 + H2O =>
MnCl2 + H2O2 + 2 KOH = 2 KCl + MnO2 + 2 H2O
Fe + FeSO4 = FeO + FeSO3 =>
Fe + FeSO4 = FeO + FeSO3
Co(OH)3 = Co(OH)2 + OH =>
Co(OH)3 = Co(OH)2 + OH
Hg2{2+}(aq) + HCl = Hg2Cl2(s) + H{+} =>
Hg2{2+}(aq) + 2 HCl = Hg2Cl2(s) + 2 H{+}
C4H10 + Br = C4H9Br + H2 =>
2 C4H10 + 2 Br = 2 C4H9Br + H2
Na2CO3 + Ca(OH)2 = NaOH + CaCO3 =>
Na2CO3 + Ca(OH)2 = 2 NaOH + CaCO3
Mg(s) + CuNO3(aq) = Mg(NO3)2(aq) + Cu(s) =>
Mg(s) + 2 CuNO3(aq) = Mg(NO3)2(aq) + 2 Cu(s)
KMnO4 + HNO3 + H2SO4 = K2SO4 + HNO5 + MnSO4 + H2O =>
4 KMnO4 + 5 HNO3 + 6 H2SO4 = 2 K2SO4 + 5 HNO5 + 4 MnSO4 + 6 H2O
HCl + Nh3 = Nh4Cl + H2 =>
6 HCl + 8 Nh3 = 6 Nh4Cl + 3 H2
CuO + H2SO4 = CuSO4 + H2O =>
CuO + H2SO4 = CuSO4 + H2O
BaCl2 + FeSO4 = Ba3(SO4)2 + FeCl3 =>
3 BaCl2 + 2 FeSO4 = Ba3(SO4)2 + 2 FeCl3
Cr2 + (SO4)3 + RbOH = Cr(OH)3 + Rb2SO4 =>
Cr2 + (SO4)3 + 6 RbOH = 2 Cr(OH)3 + 3 Rb2SO4
Fe + HNO3 = Fe(NO3)2 + NO2 + H2O =>
Fe + 4 HNO3 = Fe(NO3)2 + 2 NO2 + 2 H2O
Cu(NO3)2(aq) + Na3PO4(aq) = Cu3(PO4)2(s) + NaNO3(aq) =>
3 Cu(NO3)2(aq) + 2 Na3PO4(aq) = Cu3(PO4)2(s) + 6 NaNO3(aq)
CH3CHBrCOOH + CH3OH = CH3CHBrCOOCH3 + H2O =>
CH3CHBrCOOH + CH3OH = CH3CHBrCOOCH3 + H2O
CO + Na = Na2O + C =>
CO + 2 Na = Na2O + C
NaO + H3PO4 = Na(OH)2 + HPO3 =>
NaO + H3PO4 = Na(OH)2 + HPO3
CdCl2(aq) + NaOH(aq) = Cd(OH)2(aq) + NaCl(s) =>
CdCl2(aq) + 2 NaOH(aq) = Cd(OH)2(aq) + 2 NaCl(s)
C2H5OH + KOH = C2H5OK + HOH =>
C2H5OH + KOH = C2H5OK + HOH
KMnO4 + Na2C2O4 + H2SO4 = CO2 + K2SO4 + Na2SO4 + H2O + MnO =>
2 KMnO4 + 5 Na2C2O4 + 6 H2SO4 = 10 CO2 + K2SO4 + 5 Na2SO4 + 6 H2O + 2 MnO
IBr3 + F2 = IF5 + BrF5 =>
IBr3 + 10 F2 = IF5 + 3 BrF5
Al{+3} + Cl{-3} = AlCl =>
Al{+3} + Cl{-3} = AlCl
SnO + HNO3 = SnO2 + NO2 + H2O =>
SnO + 2 HNO3 = SnO2 + 2 NO2 + H2O
MnSO4 + (NH4)2SO4 = Mn2SO4 + NH4SO4 =>
2 MnSO4 + (NH4)2SO4 = Mn2SO4 + 2 NH4SO4
Fe + H2S = Fe2S3 + H2 =>
2 Fe + 3 H2S = Fe2S3 + 3 H2
HSO3 + Ca(OH)2 = Ca(SO3)2 + H2O =>
2 HSO3 + Ca(OH)2 = Ca(SO3)2 + 2 H2O
H4O + SO3 = H4SO4 =>
H4O + SO3 = H4SO4
CH3C(CH3)2CH3 + Cl2 = HCl + CH3C(CH3)2CH2Cl =>
CH3C(CH3)2CH3 + Cl2 = HCl + CH3C(CH3)2CH2Cl
NaBH4 + CuSO4 = Na2SO4 + Cu(BH4)2 =>
2 NaBH4 + CuSO4 = Na2SO4 + Cu(BH4)2
Sn(s) + HBr(aq) = SnBr2(aq) + H2(g) =>
Sn(s) + 2 HBr(aq) = SnBr2(aq) + H2(g)
Li2(HSO3) + HClO4 = Li(ClO4) + H2(HSO3) =>
Li2(HSO3) + 2 HClO4 = 2 Li(ClO4) + H2(HSO3)
Cu(C4H4O6)2 + C6H12O6 = CH3COCOOH + CuO2 + C4H4O6 =>
3 Cu(C4H4O6)2 + C6H12O6 = 6 CH3COCOOH + 3 CuO2 + 3 C4H4O6
BaCl2 + NaHCO3 = BaCO3 + H2O + CO2 + NaCl =>
BaCl2 + 2 NaHCO3 = BaCO3 + H2O + CO2 + 2 NaCl
Al2 + CoSO4 = Co + AlSO4 =>
Al2 + 2 CoSO4 = 2 Co + 2 AlSO4
C6H10O4 + KOH = CH3COOK + CH3CH2CH2COOK + H2O =>
2 C6H10O4 + 5 KOH = 4 CH3COOK + CH3CH2CH2COOK + 3 H2O
C17H36 + O2 = CO2 + H2O =>
C17H36 + 26 O2 = 17 CO2 + 18 H2O
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