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(NH4)2CO3 + Zn(NO3)2 = (NH4)2(NO3)2 + ZnCO3
SiO2 + HF = SiF4 + H2O =>
SiO2 + 4 HF = SiF4 + 2 H2O
Pb(NO3)2 + NaCl = PbCl2 + NaNO3 =>
Pb(NO3)2 + 2 NaCl = PbCl2 + 2 NaNO3
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
UPuO = UOPu =>
UPuO = UOPu
HC2H3O2(aq) + Ca(OH)2(aq) = Ca(C2H3O2)2(aq) + H2O(l) =>
2 HC2H3O2(aq) + Ca(OH)2(aq) = Ca(C2H3O2)2(aq) + 2 H2O(l)
Pb(OH)2 + NH3 = Pb(NH3)2 + OH =>
Pb(OH)2 + 2 NH3 = Pb(NH3)2 + 2 OH
KNO3(aq) + Na2CO3(aq) = K2CO3(aq) + NaNO3(aq) =>
2 KNO3(aq) + Na2CO3(aq) = K2CO3(aq) + 2 NaNO3(aq)
NH3 + H2O + Mg2P2O7 = MgNH4PO4*6H2O =>
2 NH3 + 13 H2O + Mg2P2O7 = 2 MgNH4PO4*6H2O
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
H2(g) + O2(g) = H2O(l) =>
2 H2(g) + O2(g) = 2 H2O(l)
ClO{-} + H{+} + Cu = Cl{-} + H2O + Cu2{+} =>
ClO{-} + 2 H{+} + 4 Cu = Cl{-} + H2O + 2 Cu2{+}
NaOH + Be(NO3)2 = NaNO3 + Be(OH)2 =>
2 NaOH + Be(NO3)2 = 2 NaNO3 + Be(OH)2
NaClO3 + Zn + NaOH + H2O = NaCl + Na2Zn(OH)4 =>
NaClO3 + 3 Zn + 6 NaOH + 3 H2O = NaCl + 3 Na2Zn(OH)4
NaClO2 + NaHSO3 = ClO2 + Cl2 + Na2SO4 + H2O =>
8 NaClO2 + 8 NaHSO3 = 2 ClO2 + 3 Cl2 + 8 Na2SO4 + 4 H2O
W + B = BW2 =>
2 W + B = BW2
Ca3P2 + Na2O = Na3P + CaO =>
Ca3P2 + 3 Na2O = 2 Na3P + 3 CaO
RbOH + ZnI2 = RbI + Zn(OH)2 =>
2 RbOH + ZnI2 = 2 RbI + Zn(OH)2
PbCl2 + O2(g) = PbO2 + Cl2 =>
PbCl2 + O2(g) = PbO2 + Cl2
P4 + N2O = P4O6 + N2 =>
P4 + 6 N2O = P4O6 + 6 N2
H2SO4 + KI = K2SO4 + IHO2 + H2S =>
2 H2SO4 + 2 KI = K2SO4 + 2 IHO2 + H2S
Ni3(TiO4) + NH4(ClO4) = Ni3(ClO4) + NH4(TiO4) =>
Ni3(TiO4) + NH4(ClO4) = Ni3(ClO4) + NH4(TiO4)
(NH4)2Cr2O7 = Cr2O3 + N2 + H2O =>
(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
KF + Mn2S3 = MnF3 + K2S =>
6 KF + Mn2S3 = 2 MnF3 + 3 K2S
NaClO3 + CrCl3 + NaOH = NaCl + Na2CrO4 + H2O =>
NaClO3 + 2 CrCl3 + 10 NaOH = 7 NaCl + 2 Na2CrO4 + 5 H2O
H2 + Ta2O3 = Ta + H2O =>
3 H2 + Ta2O3 = 2 Ta + 3 H2O
PBr3 = P3 + Br =>
3 PBr3 = P3 + 9 Br
K2SO4(aq) + Cu(NO3)2(aq) = CuSO4(s) + KNO3(aq) =>
K2SO4(aq) + Cu(NO3)2(aq) = CuSO4(s) + 2 KNO3(aq)
(b)N2(g) + O2(g) = N2O(g) =>
2(b)N2(g) + O2(g) = 2 N2O(g)
Ba(OH)2 + HCl(aq) = BaCl2(aq) + H2O =>
Ba(OH)2 + 2 HCl(aq) = BaCl2(aq) + 2 H2O
Al(OH)3 + KOH = H2O + KAlO2 =>
Al(OH)3 + KOH = 2 H2O + KAlO2
C2H6O(l) + O2(g) = CO2(g) + H2O(l) =>
C2H6O(l) + 3 O2(g) = 2 CO2(g) + 3 H2O(l)
OH{-} + Mn{2+} + O2 = MnO2 + H2O =>
4 OH{-} + 2 Mn{2+} + O2 = 2 MnO2 + 2 H2O
KI + AgOH = KOH + AgI =>
KI + AgOH = KOH + AgI
Zn + AgNO3(ac) = Ag + Zn(NO3)2(ac) =>
Zn + 2 AgNO3(ac) = 2 Ag + Zn(NO3)2(ac)
C2H5O2N(s) + O2(g) = CO2(g) + H2O(l) + N2(g) =>
4 C2H5O2N(s) + 9 O2(g) = 8 CO2(g) + 10 H2O(l) + 2 N2(g)
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
Al2O3 + HCl = AlCl3 + H2O =>
Al2O3 + 6 HCl = 2 AlCl3 + 3 H2O
Ni(s) + CO2(g) = CO(g) + NiO(s) =>
Ni(s) + CO2(g) = CO(g) + NiO(s)
NaCe + AgNO3 = NaNO3 + AgCe =>
NaCe + AgNO3 = NaNO3 + AgCe
C2H6 + Cl = C2H4Cl2 + HCl =>
C2H6 + 4 Cl = C2H4Cl2 + 2 HCl
Cu2S + O2 = Cu2O + SO2 =>
2 Cu2S + 3 O2 = 2 Cu2O + 2 SO2
NaOH(aq) + CuSO4(aq) = Cu(HO)2 + Na2SO4 =>
2 NaOH(aq) + CuSO4(aq) = Cu(HO)2 + Na2SO4
SO2 + H2O = H2SO3 =>
SO2 + H2O = H2SO3
Mg + Pb{2+} = Mg{3+} + Pb =>
2 Mg + 3 Pb{2+} = 2 Mg{3+} + 3 Pb
Ca(NH4)2 + K2SO4 = CaSO4 + KNH4 =>
Ca(NH4)2 + K2SO4 = CaSO4 + 2 KNH4
P4 + NaOH = NaPO2 + PNa3 + H2O =>
P4 + 8 NaOH = 2 NaPO2 + 2 PNa3 + 4 H2O
Cd(S) + NiO2(S) + H2O(l) = Cd(OH)2(S) + Ni(OH)2(S) =>
Cd(S) + NiO2(S) + 2 H2O(l) = Cd(OH)2(S) + Ni(OH)2(S)
AgNO2 + Li2S = LiNO2 + Ag2S =>
2 AgNO2 + Li2S = 2 LiNO2 + Ag2S
K2SO4(ac) + Ba(NO3)2(ac) = KNO3(ac) + BaSO4(ac) =>
K2SO4(ac) + Ba(NO3)2(ac) = 2 KNO3(ac) + BaSO4(ac)
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