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2 NaO + S = Na2S + 2 O
BaO + CaO = CaBaO2 =>
BaO + CaO = CaBaO2
H2S + KBrO3 = S + KBr + H2O =>
3 H2S + KBrO3 = 3 S + KBr + 3 H2O
H3PO4 + C = H3PO2 + CO =>
H3PO4 + 2 C = H3PO2 + 2 CO
CH3COOH + Mg = MgCH3COOH =>
CH3COOH + Mg = MgCH3COOH
Mg(NO3)2 + CaH2PO4 = Mg(H2PO4)2 + CaNO3 =>
Mg(NO3)2 + 2 CaH2PO4 = Mg(H2PO4)2 + 2 CaNO3
SiO2CaCO3 = CaSiO3CO2 =>
SiO2CaCO3 = CaSiO3CO2
B + H = B10H14 =>
10 B + 14 H = B10H14
ZnCl2H2S = HCl + ZnS =>
ZnCl2H2S = 2 HCl + ZnS
Br2 + H2SO3 + H2O = H2SO4 + HBr =>
Br2 + H2SO3 + H2O = H2SO4 + 2 HBr
C6H6(g) + O2 = CO2(g) + H2O =>
2 C6H6(g) + 15 O2 = 12 CO2(g) + 6 H2O
FeO + CH4 = Fe + CO2 + H2O =>
4 FeO + CH4 = 4 Fe + CO2 + 2 H2O
CrF3 + NaOH = Cr(OH)3 + NaF =>
CrF3 + 3 NaOH = Cr(OH)3 + 3 NaF
C9H8O4 + CH3OH = C7H6O3 + C3H6O2 =>
C9H8O4 + CH3OH = C7H6O3 + C3H6O2
CuSO4 + Na2S = CuS + Na2SO4 =>
CuSO4 + Na2S = CuS + Na2SO4
MgO + HS = MgS2 + H2O =>
MgO + 2 HS = MgS2 + H2O
K2[Hg(SCN)4] + NaCN = Na2[Hg(SCN)4] + KCN =>
K2[Hg(SCN)4] + 2 NaCN = Na2[Hg(SCN)4] + 2 KCN
PbO + ZrO2 + TiO2 = PbZr05Ti05O3 + O2 =>
PbO + 5 ZrO2 + 5 TiO2 = PbZr05Ti05O3 + 9 O2
Pb + HgSO4 = PbSO4 + Hg =>
Pb + HgSO4 = PbSO4 + Hg
AgNO3 + KCl = AgCl + KNO3 =>
AgNO3 + KCl = AgCl + KNO3
Br + (OH)2 = Br(OH)2 =>
Br + (OH)2 = Br(OH)2
Zu(OH)2 + HNO3 = Zu(NO3)2 + H2O =>
Zu(OH)2 + 2 HNO3 = Zu(NO3)2 + 2 H2O
XCOOH + C3H4O4 = XCHCHCOOH + H2O + CO2 =>
4 XCOOH + 5 C3H4O4 = 4 XCHCHCOOH + 6 H2O + 7 CO2
N2 + Mg = N2(Mg3) =>
N2 + 3 Mg = N2(Mg3)
Fe + NaClO = Fe3O4 + NaCl =>
3 Fe + 4 NaClO = Fe3O4 + 4 NaCl
KNO3 = KNO2 + O2 =>
2 KNO3 = 2 KNO2 + O2
NH4(OH) = NH4 + OH =>
NH4(OH) = NH4 + OH
AgCl + PbI2 = AgI + PbCl2 =>
2 AgCl + PbI2 = 2 AgI + PbCl2
(NH4)2PtCl6 + C2H4O2 + NaOH = Pt + NH4Cl + NaCl + CO2 + H2O =>
2(NH4)2PtCl6 + C2H4O2 + 8 NaOH = 2 Pt + 4 NH4Cl + 8 NaCl + 2 CO2 + 6 H2O
NaBrO3 + Fe2(SiO3)3 = Na2SiO3 + Fe(BrO3)3 =>
6 NaBrO3 + Fe2(SiO3)3 = 3 Na2SiO3 + 2 Fe(BrO3)3
Na3PO4 + Cu(NO3)2 = Cu3(PO4)2 + Na(NO3)(aq) =>
2 Na3PO4 + 3 Cu(NO3)2 = Cu3(PO4)2 + 6 Na(NO3)(aq)
K2(CO3) + HCl = KCl + CO2 + H2O =>
K2(CO3) + 2 HCl = 2 KCl + CO2 + H2O
NaHSO3 + HCl = NaCl + H2SO3 =>
NaHSO3 + HCl = NaCl + H2SO3
Fe + S = FeS2 =>
Fe + 2 S = FeS2
HSO + Zn = HO + ZnS =>
HSO + Zn = HO + ZnS
AgBr2 + HCl = AgCl2 + HBr =>
AgBr2 + 2 HCl = AgCl2 + 2 HBr
SnO + NH3 = Sn + H2O + N2 =>
3 SnO + 2 NH3 = 3 Sn + 3 H2O + N2
FeCl3 + SnCl2 + KSCN = Fe(SCN)3 + KCl2 + Sn =>
2 FeCl3 + 3 SnCl2 + 6 KSCN = 2 Fe(SCN)3 + 6 KCl2 + 3 Sn
Na + HNO3 = NH4NO3 + H2O + NaNO3 =>
8 Na + 10 HNO3 = NH4NO3 + 3 H2O + 8 NaNO3
H2SO4 + CuCl2 = CuSO4 + HCl =>
H2SO4 + CuCl2 = CuSO4 + 2 HCl
NH4OH + H2SO4 = (NH4)2SO4 + HOH =>
2 NH4OH + H2SO4 = (NH4)2SO4 + 2 HOH
KClO3 + AgNO3 = AgO3 + KClNO3 =>
KClO3 + AgNO3 = AgO3 + KClNO3
Zn + FeCI2 = Fe + ZnCI2 =>
Zn + FeCI2 = Fe + ZnCI2
Ag(NO3) + NH3 = AgNH3 + NO3 =>
Ag(NO3) + NH3 = AgNH3 + NO3
In + HBr = InBr3 + H2 =>
2 In + 6 HBr = 2 InBr3 + 3 H2
C6H5NO2CH3Cl = C6H4NO2ClCH4 =>
C6H5NO2CH3Cl = C6H4NO2ClCH4
FeCl3 + Mg(OH)2 = Fe(OH)2 + MgCl3 =>
FeCl3 + Mg(OH)2 = Fe(OH)2 + MgCl3
FeSO4 + HCl + H2O2 = FeCl3 + H2SO4 + H2O =>
2 FeSO4 + 6 HCl + H2O2 = 2 FeCl3 + 2 H2SO4 + 2 H2O
Al2(SO4)3 + HCl + NaOH = Al2O3 + H2SO4 + NaCl =>
Al2(SO4)3 + 3 HCl + 3 NaOH = Al2O3 + 3 H2SO4 + 3 NaCl
Ag2S(s) + HCl(aq) = AgCl(s) + H2S(g) =>
Ag2S(s) + 2 HCl(aq) = 2 AgCl(s) + H2S(g)
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