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2 Na(s) + 2 H2O(l) = 2 NaOH(s) + H2(s)
CaCO3 + SO2 = CaSO4 + CO =>
CaCO3 + SO2 = CaSO4 + CO
Sc + NaOH + H2O = Na3[Sc(OH)6] + H2 =>
2 Sc + 6 NaOH + 6 H2O = 2 Na3[Sc(OH)6] + 3 H2
K2Cr2O7 + H2SO4 + Cd = CdSO4 + Cr2(SO4)3 + K2SO4 + H2O =>
K2Cr2O7 + 7 H2SO4 + 3 Cd = 3 CdSO4 + Cr2(SO4)3 + K2SO4 + 7 H2O
HBr + AgNO3 = Ag2H + Br(NO3)2 =>
HBr + 2 AgNO3 = Ag2H + Br(NO3)2
Hg{2+} + Co = Hg + Co{2+} =>
Hg{2+} + Co = Hg + Co{2+}
NaHCO3 + Br2 = CO2 + NaBrO3 + NaBr + H =>
6 NaHCO3 + 3 Br2 = 6 CO2 + 2 NaBrO3 + 4 NaBr + 6 H
H2PO4 + Mg = H2 + Mg3(PO4)2 =>
2 H2PO4 + 3 Mg = 2 H2 + Mg3(PO4)2
H3PO4 + (NH4)2MoO4 + HCl = (NH4)3[PMo12O40] + NH4Cl + H2O =>
H3PO4 + 12(NH4)2MoO4 + 21 HCl = (NH4)3[PMo12O40] + 21 NH4Cl + 12 H2O
P + Cl2 = P4Cl10 =>
4 P + 5 Cl2 = P4Cl10
Fe + Mg(NO3)2 = Mg + Fe(NO3)2 =>
Fe + Mg(NO3)2 = Mg + Fe(NO3)2
Ag(NO3) + Na2(SO3) = Ag(SO3) + Na2(NO3) =>
Ag(NO3) + Na2(SO3) = Ag(SO3) + Na2(NO3)
MgOH2 + HNO3 = MgNO3 + H2 + H2O =>
2 MgOH2 + 2 HNO3 = 2 MgNO3 + H2 + 2 H2O
C2Cl2 + Cl2 = C2Cl4 =>
C2Cl2 + Cl2 = C2Cl4
A + BZ = B + AZ =>
A + BZ = B + AZ
NaOH + Cr(OH)3 = H2O + NaCrO2 =>
NaOH + Cr(OH)3 = 2 H2O + NaCrO2
He + Y + Se + Xe = HeYSeXe =>
He + Y + Se + Xe = HeYSeXe
NaPO4 + LiSO4 = LiPO4 + NaSO4 =>
NaPO4 + LiSO4 = LiPO4 + NaSO4
Rb + RbNO3 = Rb2O + N3 =>
15 Rb + 3 RbNO3 = 9 Rb2O + N3
K + PbCrO4 = Pb + K2CrO4 =>
2 K + PbCrO4 = Pb + K2CrO4
KCl + NaC2H3O2 = NaCl + KC2H3O2 =>
KCl + NaC2H3O2 = NaCl + KC2H3O2
KMnO4 + K2SO3 + H2SO4 = MnSO4 + K2SO4 + KHO =>
4 KMnO4 + 10 K2SO3 + 3 H2SO4 = 4 MnSO4 + 9 K2SO4 + 6 KHO
CH3CH3CHCoH + Cu(OH)2 = Cu2O + CH3CH3CHCoOH + H2O =>
CH3CH3CHCoH + 2 Cu(OH)2 = Cu2O + CH3CH3CHCoOH + 2 H2O
CrCl2 + Al = AlCl3 + Cr =>
3 CrCl2 + 2 Al = 2 AlCl3 + 3 Cr
Ba + Al = Ba3Al =>
3 Ba + Al = Ba3Al
Na2SiO3 + Fe + H2O + NaCl = Si + NaOH + FeCl2 =>
Na2SiO3 + 2 Fe + 3 H2O + 4 NaCl = Si + 6 NaOH + 2 FeCl2
Fe2O + O2 = Fe3O4 =>
6 Fe2O + 5 O2 = 4 Fe3O4
ZnS(s) + O2(g) = ZnO(s) + SO2(g) =>
2 ZnS(s) + 3 O2(g) = 2 ZnO(s) + 2 SO2(g)
C6H8O2 + O2 = CO2 + H2O =>
C6H8O2 + 7 O2 = 6 CO2 + 4 H2O
CH3(CH2)7CHCH(CH2)7COOH + Br2 = CH3(CH2)7(CHBr)2(CH2)7COOH =>
CH3(CH2)7CHCH(CH2)7COOH + Br2 = CH3(CH2)7(CHBr)2(CH2)7COOH
ZnSO4 + NaOH = Zn(OH)2 + Na2SO4 =>
ZnSO4 + 2 NaOH = Zn(OH)2 + Na2SO4
Al + AgNO3 = Al(NO3) + Ag =>
Al + AgNO3 = Al(NO3) + Ag
CaO + HCl = CaCl2 + H2O =>
CaO + 2 HCl = CaCl2 + H2O
Rb + H2O = Rb2O + H2 =>
2 Rb + H2O = Rb2O + H2
Ba(OH)2 + N2O5 = Ba(OH)NO3 + H2O =>
2 Ba(OH)2 + N2O5 = 2 Ba(OH)NO3 + H2O
HBr + KCl = HK + BrCl =>
HBr + KCl = HK + BrCl
NaBr + Na2SO4 = NaSO4 + Na2Br =>
NaBr + Na2SO4 = NaSO4 + Na2Br
FeCl3 + KHCO3 = Fe2(CO3)3 + KCl + HCl =>
2 FeCl3 + 3 KHCO3 = Fe2(CO3)3 + 3 KCl + 3 HCl
Zn(OH)2 + NH4Cl = Zn(NH3)4Cl2 + H2O + ZnCl2 =>
2 Zn(OH)2 + 4 NH4Cl = Zn(NH3)4Cl2 + 4 H2O + ZnCl2
As2O5 + H2O = H3(AsO4) =>
As2O5 + 3 H2O = 2 H3(AsO4)
Na + H = HNa =>
Na + H = HNa
PbO(s) + SO2(g) = PbS(s) + O2(g) =>
2 PbO(s) + 2 SO2(g) = 2 PbS(s) + 3 O2(g)
CoSO4 + H2O = Co(OH)2 + H2SO4 =>
CoSO4 + 2 H2O = Co(OH)2 + H2SO4
NaC2H3O2 + K3PO4 = Na3PO4 + KC2H3O2 =>
3 NaC2H3O2 + K3PO4 = Na3PO4 + 3 KC2H3O2
NaNO3 + K2S = KNO3 + Na2S =>
2 NaNO3 + K2S = 2 KNO3 + Na2S
NaCl = Na + Cl2 =>
2 NaCl = 2 Na + Cl2
C6H6 + HCI = CH5 + C5H2CI =>
C6H6 + HCI = CH5 + C5H2CI
NH4Br + Ba(OH)2 = NH3 + BaBr2 + H2O =>
2 NH4Br + Ba(OH)2 = 2 NH3 + BaBr2 + 2 H2O
FeS + O2 = FeO + S02 =>
2 FeS + O2 = 2 FeO + S02
CuJ2 = CuJ + J2 =>
2 CuJ2 = 2 CuJ + J2
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