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2 NaBH4 + H2SO4 = B2H6 + 2 H2 + Na2SO4
P4 + O2 = P4O10 =>
P4 + 5 O2 = P4O10
KOH + H2 = H2O + K =>
2 KOH + H2 = 2 H2O + 2 K
Cl2O + NaOH = NaClO + H2O =>
Cl2O + 2 NaOH = 2 NaClO + H2O
NaOH + (NH4)2SO4 = Na2SO4 + NH3 + H2O =>
2 NaOH + (NH4)2SO4 = Na2SO4 + 2 NH3 + 2 H2O
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
NaOH + (NH4)2SO4 = Na2SO4 + NH3 + H2O =>
2 NaOH + (NH4)2SO4 = Na2SO4 + 2 NH3 + 2 H2O
C2H2 + NaOH = C2HNa + H2O =>
C2H2 + NaOH = C2HNa + H2O
Na2SO4 + KCl = K2SO4 + NaCl =>
Na2SO4 + 2 KCl = K2SO4 + 2 NaCl
CH3CH(OH)CH3 + KMnO4 = CH3COCH3 + MnO2 + KOH + HO =>
CH3CH(OH)CH3 + KMnO4 = CH3COCH3 + MnO2 + KOH + HO
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
RbNO3 + BeF2 = Be(NO3)2 + RbF =>
2 RbNO3 + BeF2 = Be(NO3)2 + 2 RbF
NH3 + O2 = N2 + H2O =>
4 NH3 + 3 O2 = 2 N2 + 6 H2O
PbO2 + HCl = PbCl2 + Cl2 + H2O =>
PbO2 + 4 HCl = PbCl2 + Cl2 + 2 H2O
Fe(OH)3 = Fe2O3 + H2O =>
2 Fe(OH)3 = Fe2O3 + 3 H2O
CaCO3 + HCl = CaCl2 + CO2 + H2O =>
CaCO3 + 2 HCl = CaCl2 + CO2 + H2O
NH4Br + Ni4(As2O7)3 = NiBr3 + (NH4)4As2O7 =>
12 NH4Br + Ni4(As2O7)3 = 4 NiBr3 + 3(NH4)4As2O7
CO + Fe3O4 = CO2 + Fe =>
4 CO + Fe3O4 = 4 CO2 + 3 Fe
Cu + H2SO4 = CuSO4 + SO2 + H2O =>
Cu + 2 H2SO4 = CuSO4 + SO2 + 2 H2O
Ag2S + O2 = Ag2 + SO2 =>
Ag2S + O2 = Ag2 + SO2
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
SF4 + H2O = H2SO3 + HF =>
SF4 + 3 H2O = H2SO3 + 4 HF
N2O3 + H2O = HNO3 + NO =>
3 N2O3 + H2O = 2 HNO3 + 4 NO
Al(OH)3 + H2S = Al2S3 + H2O =>
2 Al(OH)3 + 3 H2S = Al2S3 + 6 H2O
NaH + H2O = NaOH + H2 =>
NaH + H2O = NaOH + H2
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
C2H6 + O2 = H2O + CO2 =>
2 C2H6 + 7 O2 = 6 H2O + 4 CO2
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
N2O3 + H2O = HNO3 + NO =>
3 N2O3 + H2O = 2 HNO3 + 4 NO
BaCl2(aq) + CuSO4(aq) = BaSO4(s) + CuCl2(aq) =>
BaCl2(aq) + CuSO4(aq) = BaSO4(s) + CuCl2(aq)
AgNO3 + Cu = Cu(NO3)2 + Ag =>
2 AgNO3 + Cu = Cu(NO3)2 + 2 Ag
Fe2(SO4)3 + Ba(OH)2 = BaSO4 + Fe(OH)3 =>
Fe2(SO4)3 + 3 Ba(OH)2 = 3 BaSO4 + 2 Fe(OH)3
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
C6H5OH + O2 = CO2 + H2O =>
C6H5OH + 7 O2 = 6 CO2 + 3 H2O
HNo3 + NaOH = NaNo3 + H2O =>
HNo3 + NaOH = NaNo3 + H2O
MG + H2SO4 = MGSO4 + H2S + H2O =>
4 MG + 5 H2SO4 = 4 MGSO4 + H2S + 4 H2O
Ni(NO3)4(aq) + KOH(aq) = Ni(OH)4(s) + KNO3(aq) =>
Ni(NO3)4(aq) + 4 KOH(aq) = Ni(OH)4(s) + 4 KNO3(aq)
C2H6 + O2 = H2O + CO2 =>
2 C2H6 + 7 O2 = 6 H2O + 4 CO2
N = N2 =>
2 N = N2
Sb + Cl2 = SbCl3 =>
2 Sb + 3 Cl2 = 2 SbCl3
K2 + H2So4 = K2So4 + H2 =>
K2 + H2So4 = K2So4 + H2
Fr + N2 = FrN =>
2 Fr + N2 = 2 FrN
PBS + O2 = PBO + SO2 =>
2 PBS + 3 O2 = 2 PBO + 2 SO2
HNO3 + Ca(OH)2 = Ca(NO3)2 + H2O =>
2 HNO3 + Ca(OH)2 = Ca(NO3)2 + 2 H2O
CA(OH)2 + CO2 = CACO3 + H2O =>
CA(OH)2 + CO2 = CACO3 + H2O
Mg3N2 + HCl = MgCl2 + NH3 =>
Mg3N2 + 6 HCl = 3 MgCl2 + 2 NH3
Br2 + S + H2O = HBr + H2SO4 =>
3 Br2 + S + 4 H2O = 6 HBr + H2SO4
CuO + H* = Cu** + H2O =>
CuO + 2 H* = Cu** + H2O
NiSO4(aq) + Na2CO3(aq) = NiCO3(s) + Na2SO4(aq) =>
NiSO4(aq) + Na2CO3(aq) = NiCO3(s) + Na2SO4(aq)
K + H3Po4 = K3Po4 + H2 =>
6 K + 2 H3Po4 = 2 K3Po4 + 3 H2
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