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3 Ca2 = 2 Ca3
Na + I + Pb(SO4)2 = PbI4 + Na2SO4 =>
4 Na + 4 I + Pb(SO4)2 = PbI4 + 2 Na2SO4
SO2 + OCl{-} + OH{-} = SO4{-2} + Cl{-} + H2O =>
SO2 + OCl{-} + 2 OH{-} = SO4{-2} + Cl{-} + H2O
KBr + H2SO4 = Br2 + SO2 + H2O + KHSO4 =>
2 KBr + 3 H2SO4 = Br2 + SO2 + 2 H2O + 2 KHSO4
NO2 + H2O = (HNO3) + NO =>
3 NO2 + H2O = 2(HNO3) + NO
Na3PO4(aq) + H2SO4(aq) = Na2SO4(aq) + H3PO4(aq) =>
2 Na3PO4(aq) + 3 H2SO4(aq) = 3 Na2SO4(aq) + 2 H3PO4(aq)
NaNO3 + NaCl = Na + NO3Cl =>
NaNO3 + NaCl = 2 Na + NO3Cl
Ca(HCO3)2 + Na2Co3 = CaCo3 + NaHCO3 =>
Ca(HCO3)2 + Na2Co3 = CaCo3 + 2 NaHCO3
Mg + CN = MgCN =>
Mg + CN = MgCN
C18H32 + CuO = H2O + CO2 + Cu2 =>
C18H32 + 52 CuO = 16 H2O + 18 CO2 + 26 Cu2
Zn + OH{-} = ZnO2{2-} + H2 =>
Zn + 2 OH{-} = ZnO2{2-} + H2
Hg2S + O2 = Hg + SO3 =>
2 Hg2S + 3 O2 = 4 Hg + 2 SO3
KH2PO4 + NaOH = H2O + NaKHPO4 =>
KH2PO4 + NaOH = H2O + NaKHPO4
Ca(OH)2 + Na2CO3 = CaCO3 + NaOH =>
Ca(OH)2 + Na2CO3 = CaCO3 + 2 NaOH
Al + H2SO4(ac) = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4(ac) = Al2(SO4)3 + 3 H2
NH4NO3 + C12H23 = N2 + CO2 + H2O =>
71 NH4NO3 + 2 C12H23 = 71 N2 + 24 CO2 + 165 H2O
Na3P = Na + P4 =>
4 Na3P = 12 Na + P4
V2(CO3)3 + H2SO4 = V2(SO4)3 + H2O + CO2 =>
V2(CO3)3 + 3 H2SO4 = V2(SO4)3 + 3 H2O + 3 CO2
H2CO3 + NaOH = NaHCO3 + H2O =>
H2CO3 + NaOH = NaHCO3 + H2O
(NH4)2S(aq) + ZnCl2(aq) = (NH4)2Cl2(s) + ZnS(s) =>
(NH4)2S(aq) + ZnCl2(aq) = (NH4)2Cl2(s) + ZnS(s)
CuCl + NH3 + H2O = Cu(NH3)4(H2O)2 + NH4Cl + OH =>
CuCl + 5 NH3 + 3 H2O = Cu(NH3)4(H2O)2 + NH4Cl + OH
PbO + HNo3 = Pb(No3)2 + H2O =>
PbO + 2 HNo3 = Pb(No3)2 + H2O
C6H14(l) + O2 = CO2(g) + H2O(l) =>
2 C6H14(l) + 19 O2 = 12 CO2(g) + 14 H2O(l)
NaBr + Na2SO4 = Na + BrSO4 =>
NaBr + Na2SO4 = 3 Na + BrSO4
S8 + F2 = SF6 =>
S8 + 24 F2 = 8 SF6
Al(OH)3 + H2 + H2O = [Al(H2O)6] =>
2 Al(OH)3 + 3 H2 + 6 H2O = 2[Al(H2O)6]
C6H5NH2 + H2O = C6H5NH4 + OH =>
C6H5NH2 + 2 H2O = C6H5NH4 + 2 OH
AlCl3 + NaF = AlF3 + NaCl =>
AlCl3 + 3 NaF = AlF3 + 3 NaCl
Cu(SO4) + KI = CuI + I2 + K2(SO4) =>
2 Cu(SO4) + 4 KI = 2 CuI + I2 + 2 K2(SO4)
Fe2(SO4)3 + Ca(HCO3)2 = Fe(OH)3 + Ca(SO4) + CO2 =>
Fe2(SO4)3 + 3 Ca(HCO3)2 = 2 Fe(OH)3 + 3 Ca(SO4) + 6 CO2
(NH4)3PO4 + NaOH = NaH2PO4 + H2O + NH3 =>
(NH4)3PO4 + NaOH = NaH2PO4 + H2O + 3 NH3
NaCN + H2O = HCOONa + NH3 =>
NaCN + 2 H2O = HCOONa + NH3
NH4Br + H2O = NH3 + H3O + Br =>
NH4Br + H2O = NH3 + H3O + Br
NH4Br + NaOH = NaBr + NH3 + H2O =>
NH4Br + NaOH = NaBr + NH3 + H2O
Br2 + CuCl2 = Cu + Br2Cl2 =>
Br2 + CuCl2 = Cu + Br2Cl2
Pb(NO3)2 + Li2CO3 = Pb(CO3) + LiNO3 =>
Pb(NO3)2 + Li2CO3 = Pb(CO3) + 2 LiNO3
B + H2SO4 = B2O3 + SO2 + H2O =>
2 B + 3 H2SO4 = B2O3 + 3 SO2 + 3 H2O
Ca(OH)2(s) + HCl(aq) = CaCl2(aq) + H2O(l) =>
Ca(OH)2(s) + 2 HCl(aq) = CaCl2(aq) + 2 H2O(l)
C6H8O6 + H2O = C6H6O6 + H3O =>
C6H8O6 + 2 H2O = C6H6O6 + 2 H3O
C6H5OH + K2Cr2O7 + H2SO4 = C6H5COOH + Cr2(SO4)3 + K2SO4 + H2O =>
21 C6H5OH + 8 K2Cr2O7 + 32 H2SO4 = 18 C6H5COOH + 8 Cr2(SO4)3 + 8 K2SO4 + 41 H2O
NaOH + Al + H2C2O4*2H2O = Na3[Al(C2O4)3]*5H2O + H2 + H2O =>
6 NaOH + 2 Al + 6 H2C2O4*2H2O = 2 Na3[Al(C2O4)3]*5H2O + 3 H2 + 8 H2O
Zn + H2(SO4) = Zn(SO4) + H2S + H2O =>
4 Zn + 5 H2(SO4) = 4 Zn(SO4) + H2S + 4 H2O
CO2(g) + H2(g) = CH4(g) + H2O(l) =>
CO2(g) + 4 H2(g) = CH4(g) + 2 H2O(l)
Fe + NH3 = Fe(NH3) =>
Fe + NH3 = Fe(NH3)
AlSO4 + CaPO4 = AlPO4 + CaSO4 =>
AlSO4 + CaPO4 = AlPO4 + CaSO4
K2CrO4 = K + CrO4 =>
K2CrO4 = 2 K + CrO4
N2O3 + O2 = NO2 =>
2 N2O3 + O2 = 4 NO2
Cl2(g) + NaBr = NaCl + Br =>
Cl2(g) + 2 NaBr = 2 NaCl + 2 Br
Mg + KOH = MgO + K + H2 =>
2 Mg + 2 KOH = 2 MgO + 2 K + H2
FeSO4(NH4)2SO4*6H2O + KMnO4 + H2SO4 = Fe2(SO4)3 + MnSO4 + (NH4)2SO4 + K2SO4 + H2O =>
10 FeSO4(NH4)2SO4*6H2O + 2 KMnO4 + 8 H2SO4 = 5 Fe2(SO4)3 + 2 MnSO4 + 10(NH4)2SO4 + K2SO4 + 68 H2O
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