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2 Ni(HCO3)3 = Ni2(CO3)3 + 3 H2O + 3 CO2
Na + S = Na2S =>
2 Na + S = Na2S
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Fe(NO3)3 + Na2CO3 = FeCO3 + Na2(NO3)3 =>
Fe(NO3)3 + Na2CO3 = FeCO3 + Na2(NO3)3
NaOH + MnSO4 = Na2SO4 + Mn(OH)2 =>
2 NaOH + MnSO4 = Na2SO4 + Mn(OH)2
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
Na + C = Na4C =>
4 Na + C = Na4C
H2O = H2 + O2 =>
2 H2O = 2 H2 + O2
CuCl2*2H2O + NaBH4 = Cu + NaCl + BH4 + H2O =>
CuCl2*2H2O + 2 NaBH4 = Cu + 2 NaCl + 2 BH4 + 2 H2O
Al + NaClO = Al2O3 + NaCl =>
2 Al + 3 NaClO = Al2O3 + 3 NaCl
H2SO4 + KOH = H2O + K2SO4 =>
H2SO4 + 2 KOH = 2 H2O + K2SO4
H2 + CL2 = HCL2 =>
H2 + 2 CL2 = 2 HCL2
H3PO4 = H4P2O7 + H2O =>
2 H3PO4 = H4P2O7 + H2O
KCrO2 + H2O2 + NaOH = K2CrO4 + Na2CrO4 + H2O =>
2 KCrO2 + 3 H2O2 + 2 NaOH = K2CrO4 + Na2CrO4 + 4 H2O
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
NaOH + SO3 = NaSO4 + NaSO2 + H2O =>
4 NaOH + 4 SO3 = 3 NaSO4 + NaSO2 + 2 H2O
Al + NAOH + H2O = NA[Al(OH)4] + H2 =>
2 Al + 2 NAOH + 6 H2O = 2 NA[Al(OH)4] + 3 H2
NaOH + HCl = NaCl + H2O =>
NaOH + HCl = NaCl + H2O
FE(NO3)2 = FEO + NO2 + O2 =>
2 FE(NO3)2 = 2 FEO + 4 NO2 + O2
Al + NAOH + H2O = NA[Al(OH)4] + H2 =>
2 Al + 2 NAOH + 6 H2O = 2 NA[Al(OH)4] + 3 H2
FE(NO3)2 = FEO + NO2 + O2 =>
2 FE(NO3)2 = 2 FEO + 4 NO2 + O2
FE + HCl = FECl2 + H2 =>
FE + 2 HCl = FECl2 + H2
HNO3 + Mg = Mg(NO3)2 + N2O + H2O =>
10 HNO3 + 4 Mg = 4 Mg(NO3)2 + N2O + 5 H2O
Fe3O4 + H2 = Fe + H2O =>
Fe3O4 + 4 H2 = 3 Fe + 4 H2O
Cu + NaClO = Cu2O3 + NaCl =>
2 Cu + 3 NaClO = Cu2O3 + 3 NaCl
Al + NaOH + H2O = NaAl(OH)4 + H2 =>
2 Al + 2 NaOH + 6 H2O = 2 NaAl(OH)4 + 3 H2
KCLO3 = KCLO2 + O2 =>
2 KCLO3 = 2 KCLO2 + O2
AgNO3(aq) + NaCl(aq) = AgCl(s) + NaNO3(aq) =>
AgNO3(aq) + NaCl(aq) = AgCl(s) + NaNO3(aq)
C2H2 + H2O = CH3CHO =>
C2H2 + H2O = CH3CHO
Al + H2SO4 = Al(SO4)3 + H2 =>
Al + 3 H2SO4 = Al(SO4)3 + 3 H2
NaOH + CO2 = Na2CO3 + H2O =>
2 NaOH + CO2 = Na2CO3 + H2O
C2H5OH + Na = C2H5ONa + H2 =>
2 C2H5OH + 2 Na = 2 C2H5ONa + H2
CO2 + NH3 = OC(NH2)2 + H2O =>
CO2 + 2 NH3 = OC(NH2)2 + H2O
KOH + HCl = KCl + H2O =>
KOH + HCl = KCl + H2O
CaCO3 + HCl = CaCl2 + CO2 + H2O =>
CaCO3 + 2 HCl = CaCl2 + CO2 + H2O
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
Mg(OH)2 + HNO3 = H2O + Mg(NO3)2 =>
Mg(OH)2 + 2 HNO3 = 2 H2O + Mg(NO3)2
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
Bi(OH)3 + NaSn(OH)3 + NaOH = Bi + Na2Sn(OH)6 =>
2 Bi(OH)3 + 3 NaSn(OH)3 + 3 NaOH = 2 Bi + 3 Na2Sn(OH)6
NaBr + Cl2 = NaCl2 + Br2 =>
2 NaBr + 2 Cl2 = 2 NaCl2 + Br2
H2 + F2 = HF =>
H2 + F2 = 2 HF
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Al2(SO4)3 + Ca(OH)2 = CaSO4 + Al(OH)3 =>
Al2(SO4)3 + 3 Ca(OH)2 = 3 CaSO4 + 2 Al(OH)3
CO + H2 = CH3OH =>
CO + 2 H2 = CH3OH
CuO + CH4 = Cu + CO2 + H2O =>
4 CuO + CH4 = 4 Cu + CO2 + 2 H2O
BaCl2(aq) + H2SO4(aq) = BaSO4(s) + HCl(aq) =>
BaCl2(aq) + H2SO4(aq) = BaSO4(s) + 2 HCl(aq)
KCl + I2 = KI + Cl2 =>
2 KCl + I2 = 2 KI + Cl2
K + H2O = K2O + H2 =>
2 K + H2O = K2O + H2
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