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2 Na + Se = Na2Se
NH4SCN + (NH4)2Cr2O7 = NH4[Cr(SCN)4(NH3)2] + NH3 + H2O + O2 =>
16 NH4SCN + 2(NH4)2Cr2O7 = 4 NH4[Cr(SCN)4(NH3)2] + 8 NH3 + 8 H2O + 3 O2
Zn(NO3)2 + NaOH = NaNO3 + Zn(OH)2 =>
Zn(NO3)2 + 2 NaOH = 2 NaNO3 + Zn(OH)2
HC3H5O3 + OH = H2O + CO =>
HC3H5O3 + 6 OH = 6 H2O + 3 CO
CsCl + H2O = Cs2O + HCl =>
2 CsCl + H2O = Cs2O + 2 HCl
Cr2O3 + Sr(OH)2 + H2O = Sr[Cr(OH)4]2 =>
Cr2O3 + Sr(OH)2 + 3 H2O = Sr[Cr(OH)4]2
Ca(H2PO4)2 + NaHCO3(s) = CO2(g) + H2O(g) + CaHPO4(s) + Na2HPO4(s) =>
Ca(H2PO4)2 + 2 NaHCO3(s) = 2 CO2(g) + 2 H2O(g) + CaHPO4(s) + Na2HPO4(s)
Li(OH) + HBr = LiBr + H2O =>
Li(OH) + HBr = LiBr + H2O
H2SO4 + Sr(OH)2 = SrSO4 + H2O =>
H2SO4 + Sr(OH)2 = SrSO4 + 2 H2O
Ca10(PO4)6(OH)2(s) + CH3COOH(aq) = Ca(CH3COO)2(aq) + H3PO4(aq) + H2O(l) =>
Ca10(PO4)6(OH)2(s) + 20 CH3COOH(aq) = 10 Ca(CH3COO)2(aq) + 6 H3PO4(aq) + 2 H2O(l)
NaCl(aq) + Hg2(C2H3O2)2(aq) = Na(C2H3O2)(aq) + Hg2Cl2(s) =>
2 NaCl(aq) + Hg2(C2H3O2)2(aq) = 2 Na(C2H3O2)(aq) + Hg2Cl2(s)
Cr2O7{2-} + H2SO3 + H{+} = Cr{3+} + H2SO4{-} + H2O =>
Cr2O7{2-} + 6 H2SO3 + 2 H{+} = 2 Cr{3+} + 6 H2SO4{-} + H2O
HClNaOH = H2ONaCl =>
HClNaOH = H2ONaCl
Cu(s) + Cl2(g) = CuCl(s) =>
2 Cu(s) + Cl2(g) = 2 CuCl(s)
HC3H5O3 + OH = HC3H4O3 + H2O =>
HC3H5O3 + OH = HC3H4O3 + H2O
CsCl + H2O = CsOH + Cl2 + H2 =>
2 CsCl + 2 H2O = 2 CsOH + Cl2 + H2
Zn + Cr2(SO4)3 = Cr + Zn(SO4) =>
3 Zn + Cr2(SO4)3 = 2 Cr + 3 Zn(SO4)
(NH4)2SO4 + H3PO4 = NH4H2PO4 + H2SO4 =>
(NH4)2SO4 + 2 H3PO4 = 2 NH4H2PO4 + H2SO4
HC3H5O3 + OH = C3O3 + H2O =>
HC3H5O3 + 6 OH = C3O3 + 6 H2O
Cu(s) + Cl2(g) = CuCl2(aq) =>
Cu(s) + Cl2(g) = CuCl2(aq)
CsCl + H2O = Cs2O + HCl =>
2 CsCl + H2O = Cs2O + 2 HCl
(NH)4(NO)2 = N2 + H2O =>
(NH)4(NO)2 = 3 N2 + 2 H2O
Zn + Cr2(SO4)3 = Zn(SO4)3 + Cr =>
Zn + Cr2(SO4)3 = Zn(SO4)3 + 2 Cr
(NH4)2SO4 + H3PO4 = (NH4)3PO4 + H2SO4 =>
3(NH4)2SO4 + 2 H3PO4 = 2(NH4)3PO4 + 3 H2SO4
BaCl2 + K(SO4) = Ba(SO4)2 + KCl =>
BaCl2 + 2 K(SO4) = Ba(SO4)2 + 2 KCl
Fe(NO3)3 + MgO = Fe2O3 + Mg(NO3)2 =>
2 Fe(NO3)3 + 3 MgO = Fe2O3 + 3 Mg(NO3)2
(NH4)2SO4 + H3PO4 = (NH4)3PO4 + H2SO4 =>
3(NH4)2SO4 + 2 H3PO4 = 2(NH4)3PO4 + 3 H2SO4
K2OMgO = K2MgO2 =>
K2OMgO = K2MgO2
Cl2(g) + H2 = HCl =>
Cl2(g) + H2 = 2 HCl
C6H6 + HCHO + HCl = C6H5CH2Cl + H2O =>
C6H6 + HCHO + HCl = C6H5CH2Cl + H2O
Cu(s) + Cl2(g) = CuCl2(g) =>
Cu(s) + Cl2(g) = CuCl2(g)
PbCO3H2S = PbSH2CO3 =>
PbCO3H2S = PbSH2CO3
AlS + H2O = AlO + H2S =>
AlS + H2O = AlO + H2S
HC3H5O3 + OH = C3O3 + H2O =>
HC3H5O3 + 6 OH = C3O3 + 6 H2O
Co(OH)2 + HI = Co(I)2 + H2O =>
Co(OH)2 + 2 HI = Co(I)2 + 2 H2O
Fe(s) + NaCl(aq) = FeCl2(aq) + Na =>
Fe(s) + 2 NaCl(aq) = FeCl2(aq) + 2 Na
(NH4)2SO4 + H3PO4 = NH4H2PO4 + H2SO4 =>
(NH4)2SO4 + 2 H3PO4 = 2 NH4H2PO4 + H2SO4
NaBr + Cl2 = NaCl2 + Br2 =>
2 NaBr + 2 Cl2 = 2 NaCl2 + Br2
C6H5OH + HNO3 = C6H4NO2OH + H2O =>
C6H5OH + HNO3 = C6H4NO2OH + H2O
NaOH + NaNO2 + Al + H2O = NH3 + NaAlO2 =>
NaOH + NaNO2 + 2 Al + H2O = NH3 + 2 NaAlO2
MgCl2(aq) + Li2S(aq) = LiCl + MgS =>
MgCl2(aq) + Li2S(aq) = 2 LiCl + MgS
La(OH)3 + H2 = LaH10 + H2O =>
2 La(OH)3 + 13 H2 = 2 LaH10 + 6 H2O
SnO2 = Sn + O2 =>
SnO2 = Sn + O2
SO2 + SiO2 = SiSO4 =>
SO2 + SiO2 = SiSO4
Br + F = BrF3 =>
Br + 3 F = BrF3
PH3 + KMnO4 + H2SO4 = KHS04 + MnSO4 + P4 + H2O =>
124 PH3 + 12 KMnO4 + 60 H2SO4 = 12 KHS04 + 12 MnSO4 + 31 P4 + 240 H2O
Cu(s) + Cl2(g) = CuCl =>
2 Cu(s) + Cl2(g) = 2 CuCl
HC3H5O3 + OH = C3H4O3 + H2O =>
HC3H5O3 + 2 OH = C3H4O3 + 2 H2O
AlS + H2O = AlHO + HS =>
AlS + H2O = AlHO + HS
Fe(s) + NaCl(aq) = Na + FeCl2 =>
Fe(s) + 2 NaCl(aq) = 2 Na + FeCl2
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