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(NH4)2Cr2O7 = N2 + 4 H2O + Cr2O3
Ca + HCl = CaCl + H2 =>
2 Ca + 2 HCl = 2 CaCl + H2
Zn + VO3{-} + H{+} = Zn{2+} + V{2+} + H2O =>
3 Zn + 2 VO3{-} + 12 H{+} = 3 Zn{2+} + 2 V{2+} + 6 H2O
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
IO3{-} + I{-} + H{+} = I2 + H2O =>
IO3{-} + 5 I{-} + 6 H{+} = 3 I2 + 3 H2O
Pb(NO3)2 + HCl = PbCl2 + HNO3 =>
Pb(NO3)2 + 2 HCl = PbCl2 + 2 HNO3
Al + NO3{-} + OH{-} + H2O = NH3 + Al(OH)4{-} =>
8 Al + 3 NO3{-} + 5 OH{-} + 18 H2O = 3 NH3 + 8 Al(OH)4{-}
Ca + HCl = CaCl + H2 =>
2 Ca + 2 HCl = 2 CaCl + H2
C4H8(OH) + H2O2 = C4H6O2 + H2O =>
2 C4H8(OH) + 5 H2O2 = 2 C4H6O2 + 8 H2O
P + O2 = P4O10 =>
4 P + 5 O2 = P4O10
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
S8 + NaOH = Na2S + Na2S2O4 + H2O =>
5 S8 + 64 NaOH = 24 Na2S + 8 Na2S2O4 + 32 H2O
KMnO4 + C3H8O3 = K2CO3 + MnO2 + CO2 + H20 =>
10 KMnO4 + 5 C3H8O3 = 5 K2CO3 + 10 MnO2 + 10 CO2 + 2 H20
Fe2O3 + SO2 = FeS + O2 =>
2 Fe2O3 + 4 SO2 = 4 FeS + 7 O2
Zn + HNO3 = Zn(NO3)2 + NO2 + H2O =>
Zn + 4 HNO3 = Zn(NO3)2 + 2 NO2 + 2 H2O
Na2O + H2O = NaOH =>
Na2O + H2O = 2 NaOH
NaBr + CaF2 = NaF + CaBr2 =>
2 NaBr + CaF2 = 2 NaF + CaBr2
FE + O = FEO =>
FE + O = FEO
Zn + HNO3 = Zn(NO3)2 + N2 + H2O =>
5 Zn + 12 HNO3 = 5 Zn(NO3)2 + N2 + 6 H2O
Fe + O = FeO =>
Fe + O = FeO
H2O + CO = C6H12O6 + O2 =>
6 H2O + 6 CO = C6H12O6 + 3 O2
Mg + HNO3 = Mg(NO3)2 + H2 =>
Mg + 2 HNO3 = Mg(NO3)2 + H2
Fe + O2 = FeO =>
2 Fe + O2 = 2 FeO
H2O + CO2 = C6H12O6 + O2 =>
6 H2O + 6 CO2 = C6H12O6 + 6 O2
Cu(NH3)4{2+} + S2O4{2-} + OH{-} = Cu + SO3{2-} + NH3 + H2O =>
Cu(NH3)4{2+} + S2O4{2-} + 4 OH{-} = Cu + 2 SO3{2-} + 4 NH3 + 2 H2O
BaCl + NaSO4 = BaSO4 + NaCl =>
BaCl + NaSO4 = BaSO4 + NaCl
K2S + K2MnO4 + H2O = KOH + MnO2 + S =>
K2S + K2MnO4 + 2 H2O = 4 KOH + MnO2 + S
BiCl3 + Na2SnO2 + NaOH = Bi + NaCl + Na2SnO3 + H2O =>
2 BiCl3 + 3 Na2SnO2 + 6 NaOH = 2 Bi + 6 NaCl + 3 Na2SnO3 + 3 H2O
KclO3 = Kcl + O2 =>
2 KclO3 = 2 Kcl + 3 O2
Ba2Cl{-}1 + NaSO4{-}2 = Ba2SO4{-}2 + NaCl{-}1 =>
Ba2Cl{-}1 + NaSO4{-}2 = Ba2SO4{-}2 + NaCl{-}1
NaOH = NaOH =>
NaOH = NaOH
Na2O + H2O = NaOH =>
Na2O + H2O = 2 NaOH
P + HNO3 + H2O = H3PO4 + NO =>
3 P + 5 HNO3 + 2 H2O = 3 H3PO4 + 5 NO
CO2 + Ca(OH)2 = CaCO3 + H2O =>
CO2 + Ca(OH)2 = CaCO3 + H2O
K2CO3 + HNO3 = KNO3 + H2O + CO2 =>
K2CO3 + 2 HNO3 = 2 KNO3 + H2O + CO2
NH3 + H2O = NH4OH =>
NH3 + H2O = NH4OH
HClO3 + ZnO = HCl + ZnO3 =>
2 HClO3 + 3 ZnO = 2 HCl + 3 ZnO3
PBS + H2O2 = PBSO4 + H20 =>
5 PBS + 10 H2O2 = 5 PBSO4 + H20
SiCl4 + H2O = SiO2 + HCl =>
SiCl4 + 2 H2O = SiO2 + 4 HCl
C8H12 + O2 = CO2 + H2O =>
C8H12 + 11 O2 = 8 CO2 + 6 H2O
Hg(OH)2 + H3PO4 = Hg3(PO4)2 + H2O =>
3 Hg(OH)2 + 2 H3PO4 = Hg3(PO4)2 + 6 H2O
FeS2 + H2O = Fe2O3 + H2 + H2SO4 =>
2 FeS2 + 19 H2O = Fe2O3 + 15 H2 + 4 H2SO4
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
SO3{2-} + MnO4{-} + H{+} = SO4{2-} + Mn{2+} + H2O =>
5 SO3{2-} + 2 MnO4{-} + 6 H{+} = 5 SO4{2-} + 2 Mn{2+} + 3 H2O
CH3COOH + CaCO3 = Ca(CH3COO)2 + H2O + CO2 =>
2 CH3COOH + CaCO3 = Ca(CH3COO)2 + H2O + CO2
Pb(NO3)2(aq) + K2CrO4(aq) = PbCrO4(s) + KNO3(aq) =>
Pb(NO3)2(aq) + K2CrO4(aq) = PbCrO4(s) + 2 KNO3(aq)
CuO2 + H2 = Cu + H2O2 =>
CuO2 + H2 = Cu + H2O2
KBr + H3PO4 = HBr + KH2PO4 =>
KBr + H3PO4 = HBr + KH2PO4
Au + NaCN + H2O + O2 = NaOH + NaAu(CN)2 =>
4 Au + 8 NaCN + 2 H2O + O2 = 4 NaOH + 4 NaAu(CN)2
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