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2 K + 2 HF = 2 KF + H2
Pb + H3PO4 = H2 + Pb3(PO4)2 =>
3 Pb + 2 H3PO4 = 3 H2 + Pb3(PO4)2
Zn + Ca(OH)2 = Zn(OH)2 + Ca =>
Zn + Ca(OH)2 = Zn(OH)2 + Ca
Fe{2+} + OH{-} = FeO + H2O =>
Fe{2+} + 2 OH{-} = FeO + H2O
NH3(g) + F2(g) = NH4F(s) + NF3(g) =>
4 NH3(g) + 3 F2(g) = 3 NH4F(s) + NF3(g)
KOH + H2SO4 = K2SO4 + H2O =>
2 KOH + H2SO4 = K2SO4 + 2 H2O
C10H22 + O2 = CO2 + H2O =>
2 C10H22 + 31 O2 = 20 CO2 + 22 H2O
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
KOH + H3SO4 = K3SO4 + H2O =>
3 KOH + H3SO4 = K3SO4 + 3 H2O
(NH4)2Co3 = NH3 + H20 + Co2 =>
10(NH4)2Co3 = 20 NH3 + H20 + 15 Co2
SO3 + NaOH = Na2SO4 + H2O =>
SO3 + 2 NaOH = Na2SO4 + H2O
HCl + KMnO4 = Cl2 + KCl + MnCl2 + H2O =>
16 HCl + 2 KMnO4 = 5 Cl2 + 2 KCl + 2 MnCl2 + 8 H2O
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
Fe + HNO3 = Fe(NO3)3 + NO + H2O =>
Fe + 4 HNO3 = Fe(NO3)3 + NO + 2 H2O
NH4NO3 = N2O + H2O =>
NH4NO3 = N2O + 2 H2O
K2CO3 + HNO3 = KNO3 + CO2 + H2O =>
K2CO3 + 2 HNO3 = 2 KNO3 + CO2 + H2O
NACO3 + CAOH = NAOH + CACO3 =>
NACO3 + CAOH = NAOH + CACO3
SiO2 + HF = SiF4 + H2O =>
SiO2 + 4 HF = SiF4 + 2 H2O
Bi2S3 + HCl = BiCl3 + H2S =>
Bi2S3 + 6 HCl = 2 BiCl3 + 3 H2S
CH3COF + H2O = CH3COOH + HF =>
CH3COF + H2O = CH3COOH + HF
CH3CH2CH2CH3 + O2 = CO2 + H2O =>
2 CH3CH2CH2CH3 + 13 O2 = 8 CO2 + 10 H2O
CH4 + H2O = CO + H2 =>
CH4 + H2O = CO + 3 H2
FeCi3 + Fe = FeCi2 =>
2 FeCi3 + Fe = 3 FeCi2
Mg(OH)2 + H3PO4 = Mg3(PO4)2 + H2O =>
3 Mg(OH)2 + 2 H3PO4 = Mg3(PO4)2 + 6 H2O
Cu(s) + Br2(l) = CuBr2(s) =>
Cu(s) + Br2(l) = CuBr2(s)
H2O + SO2 + MnO4{-} = SO4{-2} + H3O{+} + Mn{2+} =>
6 H2O + 5 SO2 + 2 MnO4{-} = 5 SO4{-2} + 4 H3O{+} + 2 Mn{2+}
Cu2 + ZnSO4 = Zn + CuSO4 =>
Cu2 + 2 ZnSO4 = 2 Zn + 2 CuSO4
Ni(NO3)2 + Na3PO4 = Ni3(PO4)2 + NaNO3 =>
3 Ni(NO3)2 + 2 Na3PO4 = Ni3(PO4)2 + 6 NaNO3
Al + H2So4 = Al2(So4)3 + H2 =>
2 Al + 3 H2So4 = Al2(So4)3 + 3 H2
MnO + HCl = MnCl2 + H2O =>
MnO + 2 HCl = MnCl2 + H2O
C3H3 + O2 = CO2 + H2O =>
4 C3H3 + 15 O2 = 12 CO2 + 6 H2O
Cu + H2SO4 = CuSO4 + SO2 + H2O =>
Cu + 2 H2SO4 = CuSO4 + SO2 + 2 H2O
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Li3N + NH4NO3 = LiNO3 + (NH4)3N =>
Li3N + 3 NH4NO3 = 3 LiNO3 + (NH4)3N
HNO3 + Cu = NO + Cu(NO3)2 + H2O =>
8 HNO3 + 3 Cu = 2 NO + 3 Cu(NO3)2 + 4 H2O
NaCI + H2So4 = Na2So4 + HCI =>
2 NaCI + H2So4 = Na2So4 + 2 HCI
Ba(s) + H2SO4(aq) = BaSO4(s) + H2(g) =>
Ba(s) + H2SO4(aq) = BaSO4(s) + H2(g)
Cr3(PO4)4 + Ni(CLO)2 = Cr(CLO)4 + Ni3(PO4)2 =>
Cr3(PO4)4 + 6 Ni(CLO)2 = 3 Cr(CLO)4 + 2 Ni3(PO4)2
Na2SO3(aq) + S8(s) = Na2S2O3(aq) =>
8 Na2SO3(aq) + S8(s) = 8 Na2S2O3(aq)
K(s) + H2O(l) = KOH(aq) + H2(g) =>
2 K(s) + 2 H2O(l) = 2 KOH(aq) + H2(g)
Cu + HNO3 = Cu(NO3)2 + H2O + NO =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 4 H2O + 2 NO
HBr + Al(OH)3 = H2O + AlBr3 =>
3 HBr + Al(OH)3 = 3 H2O + AlBr3
PbO2 = PbO + O2 =>
2 PbO2 = 2 PbO + O2
CdCl2 + NaOH = Cd(OH)2 + NaCl =>
CdCl2 + 2 NaOH = Cd(OH)2 + 2 NaCl
Sr(s) + O2(g) = SrO(s) =>
2 Sr(s) + O2(g) = 2 SrO(s)
CaO2 = CaO2 =>
CaO2 = CaO2
N2H4 = NH3 + N2 =>
3 N2H4 = 4 NH3 + N2
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
CaO + H2SO3 = Ca(SO3) + H2O =>
CaO + H2SO3 = Ca(SO3) + H2O
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