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4 Fe + 3 O2 = 2 Fe2O3
K3PO4 + CaS = K3S + CaPO4 =>
K3PO4 + CaS = K3S + CaPO4
S8 + OH{-} = S2O3{2-} + S{2-} + H2O =>
S8 + 12 OH{-} = 2 S2O3{2-} + 4 S{2-} + 6 H2O
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
K3PO4 + CaS = K3S + CaPO4 =>
K3PO4 + CaS = K3S + CaPO4
Dy + Cl2 = ClDy3 =>
6 Dy + Cl2 = 2 ClDy3
K3PO4 + CaS = K3S + CaPO4 =>
K3PO4 + CaS = K3S + CaPO4
Cu + KCN + H2O = K[Cu(CN)2] + KOH + H2 =>
2 Cu + 4 KCN + 2 H2O = 2 K[Cu(CN)2] + 2 KOH + H2
SO + H2O2 = H2SO4 + H2O =>
SO + 2 H2O2 = H2SO4 + H2O
HCl + NaOH = H2O + NaCl =>
HCl + NaOH = H2O + NaCl
P2O5 + H2O = H3PO4 =>
P2O5 + 3 H2O = 2 H3PO4
H2SO4 + BaCl2 = BaSO4 + HCl =>
H2SO4 + BaCl2 = BaSO4 + 2 HCl
P + Br2 = PBr5 =>
2 P + 5 Br2 = 2 PBr5
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
K3PO4 + CaS = K3S + CaPO4 =>
K3PO4 + CaS = K3S + CaPO4
MgO(aq) + NaBr(aq) = MgBr2(aq) + Na2O(s) =>
MgO(aq) + 2 NaBr(aq) = MgBr2(aq) + Na2O(s)
Cu(OH)2 + H3PO4 = H3(OH)2 + Cu(PO4) =>
Cu(OH)2 + H3PO4 = H3(OH)2 + Cu(PO4)
Mg + Fe2O3 = Fe + MgO =>
3 Mg + Fe2O3 = 2 Fe + 3 MgO
Ag2O = O2 + Ag =>
2 Ag2O = O2 + 4 Ag
K2O + CO + H2O = K2CO3 + COH =>
K2O + 3 CO + H2O = K2CO3 + 2 COH
CaCl2 + Na2SO4 = CaSO4 + NaCl* =>
CaCl2 + Na2SO4 = CaSO4 + 2 NaCl*
C8H9NO + HSO3Cl = CH3CONHC6H4SO2Cl + H2O =>
C8H9NO + HSO3Cl = CH3CONHC6H4SO2Cl + H2O
Cr(NO3)3 + (NH4)2S = Cr2S3 + NH4NO3 =>
2 Cr(NO3)3 + 3(NH4)2S = Cr2S3 + 6 NH4NO3
Cr = Cr4 =>
4 Cr = Cr4
Au + KCN + O2 + H2O = KAu(CN)2 + KOH =>
4 Au + 8 KCN + O2 + 2 H2O = 4 KAu(CN)2 + 4 KOH
P(OH)2 + CO2 = PCO3 + H2O =>
P(OH)2 + CO2 = PCO3 + H2O
CUSO4Zn = ZnSO4CU =>
CUSO4Zn = ZnSO4CU
KAl(SO4)2 + H2O = Al(OH)3 + KHSO4 + H2SO4 =>
KAl(SO4)2 + 3 H2O = Al(OH)3 + KHSO4 + H2SO4
C2H4 = C6H12 =>
3 C2H4 = C6H12
CuSO4(aq)Zn(No3)2(aq) = Cu(No3)2(aq)ZnSO4(aq) =>
CuSO4(aq)Zn(No3)2(aq) = Cu(No3)2(aq)ZnSO4(aq)
CrCl + H2O2 + HCl = CrCl3 + H2O =>
CrCl + H2O2 + 2 HCl = CrCl3 + 2 H2O
CH3COOH(aq) + Mg(OH)2(aq) = Mg(CH3COO)2(aq) + H2O(l) =>
2 CH3COOH(aq) + Mg(OH)2(aq) = Mg(CH3COO)2(aq) + 2 H2O(l)
BeOAl2O3*6SiO2 + Na3FeF6 = SiO2 + Fe2O3 + Al2O3 + Na2BeF4 =>
3 BeOAl2O3*6SiO2 + 2 Na3FeF6 = 18 SiO2 + Fe2O3 + 3 Al2O3 + 3 Na2BeF4
Cl4Si + H2O = O2Si + HCl =>
Cl4Si + 2 H2O = O2Si + 4 HCl
K3PO4 + CaS = K3S + CaPO4 =>
K3PO4 + CaS = K3S + CaPO4
HNO3(aq) + Ba(OH)2(aq) = Ba(NO3)2(aq) + H2O(l) =>
2 HNO3(aq) + Ba(OH)2(aq) = Ba(NO3)2(aq) + 2 H2O(l)
Ba + SO4 = BaSO4 =>
Ba + SO4 = BaSO4
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
ZnMgCl2 = MgZnCl2 =>
ZnMgCl2 = MgZnCl2
NH3 + O2 = NO2 + H2O =>
4 NH3 + 7 O2 = 4 NO2 + 6 H2O
Rb2S + CuI2 = RbI + CuS =>
Rb2S + CuI2 = 2 RbI + CuS
AlNO3 + NaS2{-} = AlS2{-} + NaNO3 =>
AlNO3 + NaS2{-} = AlS2{-} + NaNO3
MoS4 + K2MnO4 + H2SO4 = H2MoO4 + K2SO4*MnSO4 + H2O =>
2 MoS4 + 15 K2MnO4 + 22 H2SO4 = 2 H2MoO4 + 15 K2SO4*MnSO4 + 20 H2O
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
Zn + Cl2 = ZnCl2 =>
Zn + Cl2 = ZnCl2
SeF6 + NH3 = N2 + Se + HF =>
SeF6 + 2 NH3 = N2 + Se + 6 HF
H3BO3 + ZnSO4 = HZnBO3 + H2SO4 =>
H3BO3 + ZnSO4 = HZnBO3 + H2SO4
K2(CrO4) + Ca(NO3)2 = K2(NO3)2 + Ca(CrO4) =>
K2(CrO4) + Ca(NO3)2 = K2(NO3)2 + Ca(CrO4)
Na2SO3 + CH3COOH = C2H3NaO2 + SO2 + H2O =>
Na2SO3 + 2 CH3COOH = 2 C2H3NaO2 + SO2 + H2O
Na2CO3 + C3H6O3 = NaC3H5O3 + H2O + CO2 =>
Na2CO3 + 2 C3H6O3 = 2 NaC3H5O3 + H2O + CO2
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