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2 Na2S + 2 ZnSO4 = 2 Na2SO4 + S2Zn2
Au2O3 + CO = Au + CO2 =>
Au2O3 + 3 CO = 2 Au + 3 CO2
CuSO4 + HCl = CuCl2 + SO2 + O + H2O =>
CuSO4 + 2 HCl = CuCl2 + SO2 + O + H2O
V2O3 + KMnO4 = V(MnO4)3 + K2O =>
V2O3 + 6 KMnO4 = 2 V(MnO4)3 + 3 K2O
CU + H2SO4 = CUSO4 + H2S + H2O =>
4 CU + 5 H2SO4 = 4 CUSO4 + H2S + 4 H2O
Al2O3 + Fe = Al2 + FeO3 =>
Al2O3 + Fe = Al2 + FeO3
Sn + OH = SnOH =>
Sn + OH = SnOH
CH3COCH3 + Br2 = CH3COCH2Br + HBr =>
CH3COCH3 + Br2 = CH3COCH2Br + HBr
CH3CH2CH2COOH + Zn = (CH3CH2CH2COO)2Zn + H2 =>
2 CH3CH2CH2COOH + Zn = (CH3CH2CH2COO)2Zn + H2
H2O + NO2 + KMnO4 = HNO3 + KNO3 + Mn(NO3)2 =>
H2O + 5 NO2 + KMnO4 = 2 HNO3 + KNO3 + Mn(NO3)2
Cl2O + H2O = HClO =>
Cl2O + H2O = 2 HClO
CH3CH2MgBr + CO2 + H2O = CH3CH2COOH + HOMgBr =>
CH3CH2MgBr + CO2 + H2O = CH3CH2COOH + HOMgBr
CO + HCl = CClOH =>
CO + HCl = CClOH
O2 + CO2 + H2O = HCO3 =>
O2 + 4 CO2 + 2 H2O = 4 HCO3
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
H2S + HO = HOH + S =>
H2S + 2 HO = 2 HOH + S
Sn + OH = Sn(OH)2 =>
Sn + 2 OH = Sn(OH)2
PbNO32 = PbO + NO2 + O2 =>
2 PbNO32 = 2 PbO + 2 NO2 + 29 O2
Fe2(SO4)3 + KOH = Fe(OH)3 + K2(SO4) =>
Fe2(SO4)3 + 6 KOH = 2 Fe(OH)3 + 3 K2(SO4)
V2S5 + HNO3 = VO2NO3 + NO2 + H2SO4 + H2O =>
V2S5 + 42 HNO3 = 2 VO2NO3 + 40 NO2 + 5 H2SO4 + 16 H2O
Pb + P2 = Pb2P =>
4 Pb + P2 = 2 Pb2P
Al(OH)3(g) + H2(g)SO4(g) = Al2(g)(SO4(g))3(g) + H2(g)O =>
2 Al(OH)3(g) + 3 H2(g)SO4(g) = Al2(g)(SO4(g))3(g) + 6 H2(g)O
B + NaClO = Na3BO3 + Cl2 =>
2 B + 6 NaClO = 2 Na3BO3 + 3 Cl2
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
CsCl + NaClO4HOH = CsClO4 + NaCl + HOH =>
CsCl + NaClO4HOH = CsClO4 + NaCl + HOH
K2S(aq) + CuBr2(aq) = CuS(aq) + KBr(s) =>
K2S(aq) + CuBr2(aq) = CuS(aq) + 2 KBr(s)
Au2O3 + CO = Au + CO2 =>
Au2O3 + 3 CO = 2 Au + 3 CO2
F + Zn = ZnF =>
F + Zn = ZnF
Na2CO3 + H3C6H5O7 = Na3C6H5O7 + H2O + CO2 =>
3 Na2CO3 + 2 H3C6H5O7 = 2 Na3C6H5O7 + 3 H2O + 3 CO2
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
SO4 + C = S + CO2 =>
SO4 + 2 C = S + 2 CO2
Cr2(SO3)3 + H2(SO4) = Cr2(SO4)3 + H2SO3 =>
Cr2(SO3)3 + 3 H2(SO4) = Cr2(SO4)3 + 3 H2SO3
C2H6S(g) + O2(g) = CO2(g) + H2O(l) + SO2(g) =>
2 C2H6S(g) + 9 O2(g) = 4 CO2(g) + 6 H2O(l) + 2 SO2(g)
Al(NO3)3 + H2O = HNO3 + Al{3+} + OH{-} =>
Al(NO3)3 + 3 H2O = 3 HNO3 + Al{3+} + 3 OH{-}
M + HOH = M(OH)2 + H2 =>
M + 2 HOH = M(OH)2 + H2
C2H10 + Cl2 = C2H5 + HCl =>
2 C2H10 + 5 Cl2 = 2 C2H5 + 10 HCl
HNaIO3 + NaI + HCl = NaCl + I2 + H2O =>
2 HNaIO3 + 8 NaI + 10 HCl = 10 NaCl + 5 I2 + 6 H2O
MgO + Cl2O7 = MgCl2 + O2 =>
MgO + Cl2O7 = MgCl2 + 4 O2
K3PO4 + Mg = Mg3(PO4)2 + K =>
2 K3PO4 + 3 Mg = Mg3(PO4)2 + 6 K
Pb2O4 + H3PO4 = Pb3(PO4)4 + H2O =>
3 Pb2O4 + 8 H3PO4 = 2 Pb3(PO4)4 + 12 H2O
BaCl2(aq) + NaOH(aq) = Ba(OH)2(aq) + NaCl(aq) =>
BaCl2(aq) + 2 NaOH(aq) = Ba(OH)2(aq) + 2 NaCl(aq)
Au + KOH + H2O = KAu(OH)4 + H2 =>
2 Au + 2 KOH + 6 H2O = 2 KAu(OH)4 + 3 H2
Br + H2S = HBr + S8 =>
16 Br + 8 H2S = 16 HBr + S8
Mg(OH)2 + NH2CH2COOH = Mg(NH2CH2COO)2 + H2O =>
Mg(OH)2 + 2 NH2CH2COOH = Mg(NH2CH2COO)2 + 2 H2O
NaOH(aq) + BaCl2(aq) = Ba(OH)2 + NaCl(aq) =>
2 NaOH(aq) + BaCl2(aq) = Ba(OH)2 + 2 NaCl(aq)
Mg(HSO3)2 + H2CrO4 + H2SO4 = Cr2(SO4)3 + MgHSO4 + H2O =>
2 Mg(HSO3)2 + 2 H2CrO4 + H2SO4 = Cr2(SO4)3 + 2 MgHSO4 + 4 H2O
Zn + H2SO4 + H2O = [Zn(OH2)6]SO4 + H2 =>
Zn + H2SO4 + 6 H2O = [Zn(OH2)6]SO4 + H2
FeSO4 + KMnO4 + H2SO4 = Fe(SO4)3 + MnSO4 + KSO4 + H2O =>
FeSO4 + KMnO4 + 4 H2SO4 = Fe(SO4)3 + MnSO4 + KSO4 + 4 H2O
BaCl2(aq) + NaOH(aq) = Ba(OH)2 + Na(Cl) =>
BaCl2(aq) + 2 NaOH(aq) = Ba(OH)2 + 2 Na(Cl)
Cu(NO3)2(aq) + NaOH(aq) = Cu(HO)2(s) + NaNO3(aq) =>
Cu(NO3)2(aq) + 2 NaOH(aq) = Cu(HO)2(s) + 2 NaNO3(aq)
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