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4 Fe + 3 O2 = 2 Fe2O3
Fe(NO3)3 + CO = Fe2O3 + CO2 + NO2 =>
2 Fe(NO3)3 + 3 CO = Fe2O3 + 3 CO2 + 6 NO2
H2S + Pb(OH)2 = PbS + H2O =>
H2S + Pb(OH)2 = PbS + 2 H2O
Ca(OH)2 + H3PO4(aq) = Ca3(PO4)2(aq) + H2O =>
3 Ca(OH)2 + 2 H3PO4(aq) = Ca3(PO4)2(aq) + 6 H2O
CrBr3 + KClO3 + KOH = KCl + K2CrO4 + KBr + H2O =>
2 CrBr3 + KClO3 + 10 KOH = KCl + 2 K2CrO4 + 6 KBr + 5 H2O
FeCl3 + KI + C6H6 = K(C6H6) + FeI3 + Cl =>
FeCl3 + 3 KI + 3 C6H6 = 3 K(C6H6) + FeI3 + 3 Cl
Fe(NO3)2 + KSCN = Fe(SCN)2 + KNO3 =>
Fe(NO3)2 + 2 KSCN = Fe(SCN)2 + 2 KNO3
Ba(NO3)2 + KI = BaI2 + KNO3 =>
Ba(NO3)2 + 2 KI = BaI2 + 2 KNO3
CuSO4*5H2O = CuSO4 + H2O =>
CuSO4*5H2O = CuSO4 + 5 H2O
Al(s) + HCl(aq) = AlCl3(aq) + H2(g) =>
2 Al(s) + 6 HCl(aq) = 2 AlCl3(aq) + 3 H2(g)
H2SO4 + CaO = CaSO4 + H2O =>
H2SO4 + CaO = CaSO4 + H2O
CoO + O2 = Co2O3 =>
4 CoO + O2 = 2 Co2O3
Br2 + Cr(OH)3 + OH{-} = CrO4{-2} + H2O + Br{-} =>
3 Br2 + 2 Cr(OH)3 + 10 OH{-} = 2 CrO4{-2} + 8 H2O + 6 Br{-}
Sn(OH) + HBr = H2O + SnBr =>
Sn(OH) + HBr = H2O + SnBr
Br2(aq) + CaCl2(aq) = BrCl2(aq) + Ca(aq) =>
Br2(aq) + 2 CaCl2(aq) = 2 BrCl2(aq) + 2 Ca(aq)
(c)SiH4(g) + NH3(g) = Si3N4(s) + H2(g) =>
3(c)SiH4(g) + 4 NH3(g) = Si3N4(s) + 12 H2(g)
CH3POCl2 + HF = CH3POF2 + HCl =>
CH3POCl2 + 2 HF = CH3POF2 + 2 HCl
Ba(NO3)2 + NH2SO3H = Ba(NH2SO3)2 + HNO3 =>
Ba(NO3)2 + 2 NH2SO3H = Ba(NH2SO3)2 + 2 HNO3
HCN + CuSO4 = HCu + CSO4 + N2 =>
2 HCN + 2 CuSO4 = 2 HCu + 2 CSO4 + N2
C6H14 + H2O = C6H14H2O =>
C6H14 + H2O = C6H14H2O
C7H5O3N + C3H6O + HO{-} = C16H10O2N2 + C2H3OO{-} + H2O =>
2 C7H5O3N + 2 C3H6O + 2 HO{-} = C16H10O2N2 + 2 C2H3OO{-} + 4 H2O
B2H6 + Cl2 = BCl3 + HCl =>
B2H6 + 6 Cl2 = 2 BCl3 + 6 HCl
NH3 + O2 = N2O4 + H2O =>
4 NH3 + 7 O2 = 2 N2O4 + 6 H2O
Zn = Zn0 = ZnCl2 = ZnOH2 =>
Zn = Zn0
KI + H2SO4 + KNO2 = K2SO4 + H2O + NO + I2 =>
2 KI + 2 H2SO4 + 2 KNO2 = 2 K2SO4 + 2 H2O + 2 NO + I2
KMnO4 + K2C2O4 + HNO3 = Mn(NO3)2 + CO2 + KNO3 + H2O =>
2 KMnO4 + 5 K2C2O4 + 16 HNO3 = 2 Mn(NO3)2 + 10 CO2 + 12 KNO3 + 8 H2O
KBrO2 = O2 + KBr =>
KBrO2 = O2 + KBr
Li3PO4 + Ba(BrO3)2 = LiBrO3 + Ba3(PO4)2 =>
2 Li3PO4 + 3 Ba(BrO3)2 = 6 LiBrO3 + Ba3(PO4)2
Pb(ClO2)4 + Zn(SO4) = Pb(SO4)2 + Zn(ClO2)2 =>
Pb(ClO2)4 + 2 Zn(SO4) = Pb(SO4)2 + 2 Zn(ClO2)2
Fe(NO3)3 + CO = Fe2O3 + CO2 + NO2 =>
2 Fe(NO3)3 + 3 CO = Fe2O3 + 3 CO2 + 6 NO2
Cl2(g) + NaI(g) = NaCl(g) + I(g) =>
Cl2(g) + 2 NaI(g) = 2 NaCl(g) + 2 I(g)
Li2CO3(s) + HNO3(aq) = LiNO3(aq) + H2O(l) + CO2(g) =>
Li2CO3(s) + 2 HNO3(aq) = 2 LiNO3(aq) + H2O(l) + CO2(g)
NaI + Ni(NO3) = Na(NO3) + NiI =>
NaI + Ni(NO3) = Na(NO3) + NiI
Li3N + Mn(ClO3)4 = LiClO3 + Mn3N4 =>
4 Li3N + 3 Mn(ClO3)4 = 12 LiClO3 + Mn3N4
Cr2O7{-2} + C2H5OH + H{+} = Cr{+3} + CH3COOH + H2O =>
2 Cr2O7{-2} + 3 C2H5OH + 16 H{+} = 4 Cr{+3} + 3 CH3COOH + 11 H2O
Cr + O2 = Cr2O3 =>
4 Cr + 3 O2 = 2 Cr2O3
Cu(OH)2 + MgCl2 = CuCl2 + Mg(OH)2 =>
Cu(OH)2 + MgCl2 = CuCl2 + Mg(OH)2
H2S + FeF2 = FeS + HF =>
H2S + FeF2 = FeS + 2 HF
C4H4O6 + H2O2 = CO2 + H2O =>
C4H4O6 + 4 H2O2 = 4 CO2 + 6 H2O
Li2O + GeO2 = Li2Ge2O5 =>
Li2O + 2 GeO2 = Li2Ge2O5
K + Br = KBr =>
K + Br = KBr
H2CO3 = H2O + CO2 =>
H2CO3 = H2O + CO2
Li + O2 = Li2O =>
4 Li + O2 = 2 Li2O
NH4 + NO = NH4NO =>
NH4 + NO = NH4NO
NaTeO3 + NaI + HCI = NaCI + Te + H2O + I =>
NaTeO3 + 5 NaI + 6 HCI = 6 NaCI + Te + 3 H2O + 5 I
Cr(OH)3(s) + HClO4(aq) = Cr(ClO4)3(aq) + H2O(l) =>
Cr(OH)3(s) + 3 HClO4(aq) = Cr(ClO4)3(aq) + 3 H2O(l)
(NH4)2SO4(aq) + CaCl2(aq) = CaSO4(ppt) + NH4Cl(aq) =>
(NH4)2SO4(aq) + CaCl2(aq) = CaSO4(ppt) + 2 NH4Cl(aq)
Pb(NO3)2 + KI = PbI2 + NO3K =>
Pb(NO3)2 + 2 KI = PbI2 + 2 NO3K
Li + H2O = LiOH + H2 =>
2 Li + 2 H2O = 2 LiOH + H2
AgNO3 + Na3PO4 = Ag3PO4 + NaNO3 =>
3 AgNO3 + Na3PO4 = Ag3PO4 + 3 NaNO3
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