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2 Fe2S3(s) + 9 O2(g) = 2 Fe2O3(s) + 6 SO2(g)
X(NO3)2 + NH3OZ = XNO3 + Z + H2O + N2 =>
2 X(NO3)2 + 12 NH3OZ = 2 XNO3 + 12 Z + 18 H2O + 7 N2
aluminum + hydrochloricacid = AlCl + hydrogen =>
2 Al + 2 HCl = 2 AlCl + H2
Ba(NO3)2 + CaCrO4 = BaCrO4 + Ca(NO3)2 =>
Ba(NO3)2 + CaCrO4 = BaCrO4 + Ca(NO3)2
H3PO3 = H3PO4 + PH3 =>
4 H3PO3 = 3 H3PO4 + PH3
KBF4 + H2O = KF + HF + H3BO3 =>
KBF4 + 3 H2O = KF + 3 HF + H3BO3
C3H8 + O2 = H2O + C3 =>
C3H8 + 2 O2 = 4 H2O + C3
N2 + F2 = NF3 =>
N2 + 3 F2 = 2 NF3
BaCrO4 + CH3COOH = BaCOOH + CH3CrO4 =>
BaCrO4 + CH3COOH = BaCOOH + CH3CrO4
Al + CuCl2 = AlCl3 + Cu =>
2 Al + 3 CuCl2 = 2 AlCl3 + 3 Cu
ZnS + O2 = ZnO + SO2 =>
2 ZnS + 3 O2 = 2 ZnO + 2 SO2
K3Ag(C4H4O6)2 + O2 = Ag2O + CO2 + H2O + K2CO3 =>
2 K3Ag(C4H4O6)2 + 10 O2 = Ag2O + 13 CO2 + 8 H2O + 3 K2CO3
P2 + H2O = PH3 + O2 =>
2 P2 + 6 H2O = 4 PH3 + 3 O2
K2MnO4 + H2SO4 = KMnO4 + MnO2 + K2SO4 + H2O =>
3 K2MnO4 + 2 H2SO4 = 2 KMnO4 + MnO2 + 2 K2SO4 + 2 H2O
CH2O = CO + H2 =>
CH2O = CO + H2
N2 + O2 = NO =>
N2 + O2 = 2 NO
NaBr + K3PO4 = Na3PO4 + BrK =>
3 NaBr + K3PO4 = Na3PO4 + 3 BrK
HBO2 + H2O = H3O + BO2 =>
HBO2 + H2O = H3O + BO2
C6H12O6 + O2 = CO2 + H2O =>
C6H12O6 + 6 O2 = 6 CO2 + 6 H2O
SnCl2 + KSCN = Sn(SCN)2 + KCl =>
SnCl2 + 2 KSCN = Sn(SCN)2 + 2 KCl
CuO + H2O = Cu(OH)2 = =>
CuO + H2O = Cu(OH)2
HgNO3 = Hg + O2 + NO2 =>
2 HgNO3 = 2 Hg + O2 + 2 NO2
Fe + Fl2 = FeFl2 =>
Fe + Fl2 = FeFl2
Cr + H2SO4 = CrO3 + SO2 + H2O =>
Cr + 3 H2SO4 = CrO3 + 3 SO2 + 3 H2O
KNO3 = KNO2 + O2 =>
2 KNO3 = 2 KNO2 + O2
Ca(No3)2 + KCl = CaCl2 + KNo3 =>
Ca(No3)2 + 2 KCl = CaCl2 + 2 KNo3
FeI3 + Pb(NO3)2 = Fe(NO3)3 + PbI2 =>
2 FeI3 + 3 Pb(NO3)2 = 2 Fe(NO3)3 + 3 PbI2
Ca(C2H3O2)2 + Na2CO3 = CaCO3 + C2H3O2 + Na =>
Ca(C2H3O2)2 + Na2CO3 = CaCO3 + 2 C2H3O2 + 2 Na
Sr2O + CO = Sr2 + CO2 =>
Sr2O + CO = Sr2 + CO2
Mg + Cr(C2H3O2)3 = Mg(C2H3O2)2 + Cr =>
3 Mg + 2 Cr(C2H3O2)3 = 3 Mg(C2H3O2)2 + 2 Cr
CrI + Cl2 + KOH = K2CrO4 + KIO3 + KCl + H2O =>
2 CrI + 11 Cl2 + 28 KOH = 2 K2CrO4 + 2 KIO3 + 22 KCl + 14 H2O
CH4(g) + S8(g) = CS2(e) + H2S(g) =>
2 CH4(g) + S8(g) = 2 CS2(e) + 4 H2S(g)
FeSO4 + Ba(NO3)2 = BaSO4 + Fe(NO3)2 =>
FeSO4 + Ba(NO3)2 = BaSO4 + Fe(NO3)2
Ag4O3 = Ag + O =>
Ag4O3 = 4 Ag + 3 O
Na2B4O7*10H2O(borax) + NaOH = NaBO2 + H2O =>
Na2B4O7*10H2O(borax) + 2 NaOH = 4 NaBO2 + 11 H2O
PO4 + Cu = Cu3(PO4) =>
PO4 + 3 Cu = Cu3(PO4)
K(MnO4) + HBr = MnBr2 + Br2 + KBr + H2O =>
2 K(MnO4) + 16 HBr = 2 MnBr2 + 5 Br2 + 2 KBr + 8 H2O
Ca + N2 = Ca3N2 =>
3 Ca + N2 = Ca3N2
HCN + CH3CH2CHO = CH3CH2CH2CNO =>
HCN + CH3CH2CHO = CH3CH2CH2CNO
Sr + Ca(NO3)2 = Sr(NO3) + Ca =>
2 Sr + Ca(NO3)2 = 2 Sr(NO3) + Ca
KOH(s) = H20(g) + KO(s) =>
20 KOH(s) = H20(g) + 20 KO(s)
CH4 + C3H6 = CH3C3H7 =>
CH4 + C3H6 = CH3C3H7
Al(NO3)2 + Pb = Al + Pb(NO3)2 =>
Al(NO3)2 + Pb = Al + Pb(NO3)2
H3BO3 + H2O = H3O + BO3 =>
H3BO3 + 3 H2O = 3 H3O + BO3
Fe2S3 + NH4OH = Fe(OH)3 + (NH4)2S =>
Fe2S3 + 6 NH4OH = 2 Fe(OH)3 + 3(NH4)2S
HK + Cl2NO4 = H2NO4 + ClK =>
2 HK + Cl2NO4 = H2NO4 + 2 ClK
K + H3PO4 = H2 + K3PO4 =>
6 K + 2 H3PO4 = 3 H2 + 2 K3PO4
MgCl2 + NaOH = Mg(OH)2 + Cl{-} + Na{+} =>
MgCl2 + 2 NaOH = Mg(OH)2 + 2 Cl{-} + 2 Na{+}
KCrO2 + HBr = CrBr3 + K2O + H2O =>
2 KCrO2 + 6 HBr = 2 CrBr3 + K2O + 3 H2O
Zn(aq) + K3Fe(CN)6(aq) = Zn3K2[Fe(CN)6]2(s) + K =>
3 Zn(aq) + 2 K3Fe(CN)6(aq) = Zn3K2[Fe(CN)6]2(s) + 4 K
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