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4 Na + O2 = 2 Na2O
FeS2 + Na2O2 = Na2SO4 + Na2O + Fe2O3 =>
2 FeS2 + 15 Na2O2 = 4 Na2SO4 + 11 Na2O + Fe2O3
NaOH = H2O + Na2O =>
2 NaOH = H2O + Na2O
NaClO(aq) + HCl(aq) + KBr(aq) = KCl(aq) + Br2(l) + NaOH =>
NaClO(aq) + HCl(aq) + 2 KBr(aq) = 2 KCl(aq) + Br2(l) + NaOH
CaC2(s) + H2O(l) = Ca(OH)2(aq) + C2H2(aq) =>
CaC2(s) + 2 H2O(l) = Ca(OH)2(aq) + C2H2(aq)
C3H4Br2 + H2 = C3H4 + HBr =>
C3H4Br2 + H2 = C3H4 + 2 HBr
Na2SO3 + O2 = Na2(SO4) =>
2 Na2SO3 + O2 = 2 Na2(SO4)
MgSO4 + HOH = Mg(OH)2 + H2SO4 =>
MgSO4 + 2 HOH = Mg(OH)2 + H2SO4
CH3CHBrCOOH + NH3 = CH3CH(NH2)COOH + NH4Br =>
CH3CHBrCOOH + 2 NH3 = CH3CH(NH2)COOH + NH4Br
Br2 + KNO2 + KOH = KNO3 + KBr + H2O =>
Br2 + KNO2 + 2 KOH = KNO3 + 2 KBr + H2O
C6H5CH2OH + Ag(NH3)2OH = C6H5COONH4 + Ag + NH3 + H2O =>
C6H5CH2OH + 4 Ag(NH3)2OH = C6H5COONH4 + 4 Ag + 7 NH3 + 3 H2O
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O(l) =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O(l)
C5H5N + AgNO3 = AgC5H5N + NO3 =>
C5H5N + AgNO3 = AgC5H5N + NO3
N2H2(g) + F2(g) = N(g) + HF(g) =>
N2H2(g) + F2(g) = 2 N(g) + 2 HF(g)
Cs + HCl = CsCl2 + H2Cl =>
Cs + 4 HCl = CsCl2 + 2 H2Cl
Ethylalcohol + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
NaCl + Pb(NO3)2 + KI = PbCl2 + KNO3 + NaI =>
2 NaCl + Pb(NO3)2 + 2 KI = PbCl2 + 2 KNO3 + 2 NaI
K2CrO7 + NaNO2 + H2O = Cr(OH)3 + NaNO3 + KOH =>
2 K2CrO7 + 9 NaNO2 + 5 H2O = 2 Cr(OH)3 + 9 NaNO3 + 4 KOH
Pb(NO3)2 + P2O5 = PbO + P(NO3)5 =>
5 Pb(NO3)2 + P2O5 = 5 PbO + 2 P(NO3)5
HPO2 + Cr(OH)2 = Cr(PO2)2 + H2O =>
2 HPO2 + Cr(OH)2 = Cr(PO2)2 + 2 H2O
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
CaCO3 + H2O = CaCO2 + OH =>
CaCO3 + H2O = CaCO2 + 2 OH
Zn + LiF = ZnF2 + Li =>
Zn + 2 LiF = ZnF2 + 2 Li
BaBr2 + ZnCl2 = BaCl2 + ZnBr2 =>
BaBr2 + ZnCl2 = BaCl2 + ZnBr2
KMnO4 + K2SO3 + HCl = MnO2 + K2SO4 + KCl + H2O =>
2 KMnO4 + 3 K2SO3 + 2 HCl = 2 MnO2 + 3 K2SO4 + 2 KCl + H2O
C2H3OH + KMnO4 + H2SO4 = K2SO4 + H2O + CH2COOH + MnSO4 =>
10 C2H3OH + 6 KMnO4 + 9 H2SO4 = 3 K2SO4 + 14 H2O + 10 CH2COOH + 6 MnSO4
Cu(NO3)2 + Na2S2O3 = CuS2O3 + NaNO3 =>
Cu(NO3)2 + Na2S2O3 = CuS2O3 + 2 NaNO3
CaO + HNO3 = Ca(NO3)2 + H2O =>
CaO + 2 HNO3 = Ca(NO3)2 + H2O
CaI2 = Ca + I2 =>
CaI2 = Ca + I2
Mg2Si + H3PO4 = Mg3(PO4)2 + SiH4 =>
3 Mg2Si + 4 H3PO4 = 2 Mg3(PO4)2 + 3 SiH4
ZnS + O = ZnOS(O)2 =>
ZnS + 3 O = ZnOS(O)2
Zr(s) + O2(g) = ZrO2(s) =>
Zr(s) + O2(g) = ZrO2(s)
H3PO4 + NaCN = HCN + Na3PO4 =>
H3PO4 + 3 NaCN = 3 HCN + Na3PO4
CO2 + H2S = COS + H2O =>
CO2 + H2S = COS + H2O
K2HPO4 + NaOH = K3PO4 + Na3PO4 + H2O =>
3 K2HPO4 + 3 NaOH = 2 K3PO4 + Na3PO4 + 3 H2O
Mg + H2Cr2O7 = MgCr2O6 + H2O =>
Mg + H2Cr2O7 = MgCr2O6 + H2O
W(C2H3O2)5 + Sc2(OH)4 = W(OH)5 + Sc(C2H3O2)2 =>
4 W(C2H3O2)5 + 5 Sc2(OH)4 = 4 W(OH)5 + 10 Sc(C2H3O2)2
Hg(NO3) + AlCl3 = Al(NO3)3 + HgCl =>
3 Hg(NO3) + AlCl3 = Al(NO3)3 + 3 HgCl
CuP + HCl + H2O2 = CuCl + H3PO3 + H =>
2 CuP + 2 HCl + 3 H2O2 = 2 CuCl + 2 H3PO3 + 2 H
H* + Cl* = HCl =>
H* + Cl* = HCl
AlNaOH = Al(NaOH) =>
AlNaOH = Al(NaOH)
Ca2(SO4)2 = Ca + SO4 =>
Ca2(SO4)2 = 2 Ca + 2 SO4
NO + N2O6 = NO2 =>
2 NO + N2O6 = 4 NO2
AlCl3 + AgNo3 = AgCl + Al(No3)3 =>
AlCl3 + 3 AgNo3 = 3 AgCl + Al(No3)3
C2H4OHCOOH = H + C2H4OHCOO =>
C2H4OHCOOH = H + C2H4OHCOO
Ca(NO3)2 + NH4HCO3 = CaCO3 + NH4NO3 + H2O + CO2 =>
Ca(NO3)2 + 2 NH4HCO3 = CaCO3 + 2 NH4NO3 + H2O + CO2
BrCl = Cl2 + Br2 =>
2 BrCl = Cl2 + Br2
Fe2S + Na2CO3 = Fe2O3 + Na2SO4 + Na + CO2 =>
Fe2S + 7 Na2CO3 = Fe2O3 + Na2SO4 + 12 Na + 7 CO2
C6H5CH2Cl + Cl2 = C6H5CHCl2 + HCl =>
C6H5CH2Cl + Cl2 = C6H5CHCl2 + HCl
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