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2 Na + 2 H2O = 2 NaOH + H2
Mg + H2SO4 = MgSO4 + H2 =>
Mg + H2SO4 = MgSO4 + H2
Be(OH)2 + HCl = BeCl2 + H2O =>
Be(OH)2 + 2 HCl = BeCl2 + 2 H2O
Fe2(SO4)3 + KOH = K2SO4 + Fe(OH)3 =>
Fe2(SO4)3 + 6 KOH = 3 K2SO4 + 2 Fe(OH)3
Co(NO3)2 + NaHCO3 = Na2(NO3)2 + Co(HCO3)2 =>
Co(NO3)2 + 2 NaHCO3 = Na2(NO3)2 + Co(HCO3)2
CaC + H2O = CH2 + CaO =>
CaC + H2O = CH2 + CaO
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
H2S + KOH = K2S + HOH =>
H2S + 2 KOH = K2S + 2 HOH
Na2CO3 + HCl = NaCl + H2CO3 =>
Na2CO3 + 2 HCl = 2 NaCl + H2CO3
AgNO3 + K2CO3 = Ag2CO3 + KNO3 =>
2 AgNO3 + K2CO3 = Ag2CO3 + 2 KNO3
PbO(s) + SnO2(s) = PbO2(s) + SnO(s) =>
PbO(s) + SnO2(s) = PbO2(s) + SnO(s)
NiClO2 = NiCl + O2 =>
NiClO2 = NiCl + O2
MnSO4 + HNO3 + KBrO3 = HMnO4 + Br(NO3)3 + H2SO4 + KNO3 + H2O =>
2 MnSO4 + 20 HNO3 + 5 KBrO3 = 2 HMnO4 + 5 Br(NO3)3 + 2 H2SO4 + 5 KNO3 + 7 H2O
CaCo3 + HI = CaI2 + H2Co3 =>
CaCo3 + 2 HI = CaI2 + H2Co3
KBrO3 + NaAsO2 + NaOH = Na3AsO4 + KBr + H2O =>
KBrO3 + 3 NaAsO2 + 6 NaOH = 3 Na3AsO4 + KBr + 3 H2O
HCl + K2S = KHS + KCl =>
HCl + K2S = KHS + KCl
CaCl2 + Na3PO4 = Ca3(PO4)2 + NaCl =>
3 CaCl2 + 2 Na3PO4 = Ca3(PO4)2 + 6 NaCl
CaCO3 + MgCl2 = MgCl2CaCO3 =>
CaCO3 + MgCl2 = MgCl2CaCO3
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
Fe(s) + Pb(NO3)2(aq) = Fe(NO3)2(aq) + Pb(s) =>
Fe(s) + Pb(NO3)2(aq) = Fe(NO3)2(aq) + Pb(s)
NaOH + Mg(CH3COO)2 = Na(CH3COO)2 + MgOH =>
NaOH + Mg(CH3COO)2 = Na(CH3COO)2 + MgOH
NiCl2 + Br2 + NaOH = Ni(OH)3 + NaBr + NaCl =>
2 NiCl2 + Br2 + 6 NaOH = 2 Ni(OH)3 + 2 NaBr + 4 NaCl
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
KMnO4 + PbCl2 + HCl = MnCl2 + PbCl4 + KCl + H2O =>
2 KMnO4 + 5 PbCl2 + 16 HCl = 2 MnCl2 + 5 PbCl4 + 2 KCl + 8 H2O
F2 + H2O = OF2 + HF =>
2 F2 + H2O = OF2 + 2 HF
Na4V4O12 + H2SO4 = Na6V10O28 + Na2SO4 + H2O =>
5 Na4V4O12 + 4 H2SO4 = 2 Na6V10O28 + 4 Na2SO4 + 4 H2O
Mg(OH)2 + HCl = MgCl2 + H2O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 H2O
F2 + H2O = OF2 + HF =>
2 F2 + H2O = OF2 + 2 HF
Ag + HNO3 = AgNO3 + H2 =>
2 Ag + 2 HNO3 = 2 AgNO3 + H2
FeNO32 + HNO3 = FeNO33 + NO + H2O =>
3 FeNO32 + 2 HNO3 = 3 FeNO33 + 2 NO + H2O
Cl + KI = ClI + K =>
Cl + KI = ClI + K
Zn(NO3)2 + KOH = Zn(OH)2 + KNO3 =>
Zn(NO3)2 + 2 KOH = Zn(OH)2 + 2 KNO3
HCl + K2CO3 = KCl + H2O + CO2 =>
2 HCl + K2CO3 = 2 KCl + H2O + CO2
Fe(OH)2 = FeO + H2O =>
Fe(OH)2 = FeO + H2O
Al + B = AlB3 =>
Al + 3 B = AlB3
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
K2CO3 + H2SO4 = K2SO4 + H2O + CO2 =>
K2CO3 + H2SO4 = K2SO4 + H2O + CO2
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Cu(s) + H2O = CuO + H2 =>
Cu(s) + H2O = CuO + H2
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
CH2CHCHCH2 + KMnO4 + H2SO4 = CH3COH + CO2 + K2SO4 + MnSO4 =>
25 CH2CHCHCH2 + 14 KMnO4 + 21 H2SO4 = 48 CH3COH + 4 CO2 + 7 K2SO4 + 14 MnSO4
Zn + H3PO4 = ZnPO4 + H2 =>
2 Zn + 2 H3PO4 = 2 ZnPO4 + 3 H2
P4 + O5 = P2O5 =>
P4 + 2 O5 = 2 P2O5
AgNo3 + Na2C2O4 = Ag2C2O4 + NaNo3 =>
2 AgNo3 + Na2C2O4 = Ag2C2O4 + 2 NaNo3
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Pb(NO3)2 + Na2SO4 = PbSO4 + NaNO3 =>
Pb(NO3)2 + Na2SO4 = PbSO4 + 2 NaNO3
Na3PO4 + KOH = NaOH + K3PO4 =>
Na3PO4 + 3 KOH = 3 NaOH + K3PO4
NaCl + H2O = Na2O + HCl =>
2 NaCl + H2O = Na2O + 2 HCl
HgO + Cl2 = HgCl + O2 =>
2 HgO + Cl2 = 2 HgCl + O2
MnO4({-}) + CN({-}) + H2O = MnO2 + OCN({-}) + OH({-}) =>
2 MnO4({-}) + 3 CN({-}) + H2O = 2 MnO2 + 3 OCN({-}) + 2 OH({-})
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