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4 Na + H2O2 = 2 Na2O + H2
HBr + K2CO3 = KBr + H2CO3 =>
2 HBr + K2CO3 = 2 KBr + H2CO3
S8 + O2 = SO2 =>
S8 + 8 O2 = 8 SO2
Na + CO2 = NaC3 + O2 =>
Na + 3 CO2 = NaC3 + 3 O2
NH3 + CO2 = NH3CO2 =>
NH3 + CO2 = NH3CO2
MoO3 + H2 = Mo + H2O =>
MoO3 + 3 H2 = Mo + 3 H2O
H2C2O4 = H + C2O4 =>
H2C2O4 = 2 H + C2O4
AgNO3() + NaOH() = AgOH() + NaNO3() =>
AgNO3() + NaOH() = AgOH() + NaNO3()
(b)NaNO3(aq) + H2SO4(aq) = Na2SO4(aq) + HNO3(aq) =>
2(b)NaNO3(aq) + H2SO4(aq) = Na2SO4(aq) + 2 HNO3(aq)
Sr + Al(NO3) = Sr(NO3)2 + Al =>
Sr + 2 Al(NO3) = Sr(NO3)2 + 2 Al
H2C2O4 = CO2 + H =>
H2C2O4 = 2 CO2 + 2 H
AlCl + H = Al + HCl =>
AlCl + H = Al + HCl
Pb2 + HCl = PbCl2 + H2 =>
Pb2 + 4 HCl = 2 PbCl2 + 2 H2
NaI + Cl2 = NaCl + I =>
2 NaI + Cl2 = 2 NaCl + 2 I
CH3CH(OH)CH3HBr = CH3CHBrCH3H2O =>
CH3CH(OH)CH3HBr = CH3CHBrCH3H2O
H2C2O4 = CO2 + H{+} + e =>
H2C2O4 = 2 CO2 + 2 H{+} + 2e
Ca(NO3)2 + NaOH = Ca(OH)2 + Na(NO3) =>
Ca(NO3)2 + 2 NaOH = Ca(OH)2 + 2 Na(NO3)
H2C2O4 = CO2 + H2 =>
H2C2O4 = 2 CO2 + H2
P5 + H2O = H3PO4 + H2 =>
2 P5 + 40 H2O = 10 H3PO4 + 25 H2
NH4ClO4 + C5H8O2 = CO2 + H2O + HCl + N2 =>
24 NH4ClO4 + 5 C5H8O2 = 25 CO2 + 56 H2O + 24 HCl + 12 N2
CN{-} + OCl{-} + OH{-} = CO3{2-} + N2 + Cl{-} + H2O =>
2 CN{-} + 5 OCl{-} + 2 OH{-} = 2 CO3{2-} + N2 + 5 Cl{-} + H2O
C2 = C104 =>
52 C2 = C104
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
H2C2O4 = H + C2O4 =>
H2C2O4 = 2 H + C2O4
NaClO + NaOH + PbAc2 = NaAc + NaCl + PbO2 + H2O =>
NaClO + 2 NaOH + PbAc2 = 2 NaAc + NaCl + PbO2 + H2O
KClO3 + NaC7H5O2 = KCl + Na2O + CO2 + H2O =>
10 KClO3 + 2 NaC7H5O2 = 10 KCl + Na2O + 14 CO2 + 5 H2O
H2C2O4 = CO2 + H{+} + {-} =>
H2C2O4 = 2 CO2 + 2 H{+} + 2e
(NH4)2S + O2 = NH3 + S + H2O =>
2(NH4)2S + O2 = 4 NH3 + 2 S + 2 H2O
K + H2SO4 = K2SO4 + S + H2O =>
6 K + 4 H2SO4 = 3 K2SO4 + S + 4 H2O
K + H2SO4 = K2SO4 + H2S + H2O =>
8 K + 5 H2SO4 = 4 K2SO4 + H2S + 4 H2O
NaOH(s) + NH4Cl(s) = NaCl(s) + NH3(g) + H2O(l) =>
NaOH(s) + NH4Cl(s) = NaCl(s) + NH3(g) + H2O(l)
Cd + HCl = CdCl + H =>
Cd + HCl = CdCl + H
iron + copper(II)chloride = iron(II)chloride + copper =>
Fe + CuCl2 = FeCl2 + Cu
C6H12O6 = C2H5OH + CO2 =>
C6H12O6 = 2 C2H5OH + 2 CO2
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Li + AlBr3 = LiBr + Al =>
3 Li + AlBr3 = 3 LiBr + Al
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
NiCl2 + NaBH4 + H2O = Ni + NaCl + H3BO3 + H2 =>
NiCl2 + 2 NaBH4 + 6 H2O = Ni + 2 NaCl + 2 H3BO3 + 7 H2
AlPO4 + Pb(NO3)2 = Al(NO3)3 + Pb3(PO4)2 =>
2 AlPO4 + 3 Pb(NO3)2 = 2 Al(NO3)3 + Pb3(PO4)2
ZrO(NO3)28H2O + CH4N2O = ZrO2 + H2O + N2 + CO2 =>
3 ZrO(NO3)28H2O + 83 CH4N2O = 3 ZrO2 + 169 H2O + 125 N2 + 83 CO2
Mg + Cu2S = MgS + Cu2 =>
Mg + Cu2S = MgS + Cu2
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
Ni(NO3)2 + C2H5NO2 = NiO + CO2 + H2O + N2 =>
9 Ni(NO3)2 + 10 C2H5NO2 = 9 NiO + 20 CO2 + 25 H2O + 14 N2
NiCl2 + NaBH4 + H2O = Ni + NaCl + B(OH)3 + H2 =>
NiCl2 + 2 NaBH4 + 6 H2O = Ni + 2 NaCl + 2 B(OH)3 + 7 H2
Mg(s) + HC2H3O2(aq) = Mg(C2H3O2)2(aq) + H2 =>
Mg(s) + 2 HC2H3O2(aq) = Mg(C2H3O2)2(aq) + H2
NaCl + BrO = BrCl2 + Na2O =>
2 NaCl + BrO = BrCl2 + Na2O
Ca + HCl = CaCl2 + H2 =>
Ca + 2 HCl = CaCl2 + H2
Cu + H2CO3 = Cu2CO3 + H2 =>
2 Cu + H2CO3 = Cu2CO3 + H2
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