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H2S(aq) + NaHCO3(aq) = NaHS(aq) + H2O(l) + CO2(g)
Cu(NO3)2 = CuO + NO2 + O2 =>
2 Cu(NO3)2 = 2 CuO + 4 NO2 + O2
CH4 + O2 = CO2 + H2O = =>
CH4 + 2 O2 = CO2 + 2 H2O
Zn(s) + HCl(aq) = ZnCl2(g) + H2(g) =>
Zn(s) + 2 HCl(aq) = ZnCl2(g) + H2(g)
NH3(g) + O2(g) = NO2(g) + H2O(g) =>
4 NH3(g) + 7 O2(g) = 4 NO2(g) + 6 H2O(g)
Mg(H20)6 + NaOH = Mg(OH)2 + Na + H2O =>
Mg(H20)6 + 122 NaOH = Mg(OH)2 + 122 Na + 120 H2O
AlCl{+3} + Fe = FeCl{+3} + Al =>
AlCl{+3} + Fe = FeCl{+3} + Al
Ca(HO)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(HO)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
C3H7Cl + O2 = CO2 + H2O + HCl =>
2 C3H7Cl + 9 O2 = 6 CO2 + 6 H2O + 2 HCl
K2MoO4 + SnCl2 + HCl = K4Mo2Cl8 + H2O + SnCl4 =>
2 K2MoO4 + 4 SnCl2 + 16 HCl = K4Mo2Cl8 + 8 H2O + 4 SnCl4
NaCl + CaCO3 + H3C6H8O7 = H2O + NaCHO + CO2 + CaCl2 =>
42 NaCl + 21 CaCO3 + 8 H3C6H8O7 = 23 H2O + 42 NaCHO + 27 CO2 + 21 CaCl2
Pb(NO3)2 + (NH4)3PO4 = Pb3(PO4)2 + NH4NO3 =>
3 Pb(NO3)2 + 2(NH4)3PO4 = Pb3(PO4)2 + 6 NH4NO3
Cr(NO3)2 + HCl + HgCl2 = CrCl3 + Hg2Cl2 + HNO3 =>
2 Cr(NO3)2 + 4 HCl + 2 HgCl2 = 2 CrCl3 + Hg2Cl2 + 4 HNO3
FeSO4 + H2SO4 = Fe(HSO4)3 + SO2 + H2O =>
2 FeSO4 + 5 H2SO4 = 2 Fe(HSO4)3 + SO2 + 2 H2O
Mg(H20)6 + NaOH = Mg(OH)2 + Na + H2O =>
Mg(H20)6 + 122 NaOH = Mg(OH)2 + 122 Na + 120 H2O
ZrO2 + H2 = Zr + H2O =>
ZrO2 + 2 H2 = Zr + 2 H2O
HF + Mg3(PO4)2 = H3PO4 + MgF2 =>
6 HF + Mg3(PO4)2 = 2 H3PO4 + 3 MgF2
Fe(NO3)3 + KSCN = Fe(SCN)3 + KNO3 =>
Fe(NO3)3 + 3 KSCN = Fe(SCN)3 + 3 KNO3
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
Fe2(SO4)3 + NaOH = Fe(OH)3 + Na2SO4 =>
Fe2(SO4)3 + 6 NaOH = 2 Fe(OH)3 + 3 Na2SO4
PbSO4 + Mn = MnSO4 + Pb =>
PbSO4 + Mn = MnSO4 + Pb
ZrO2 + H2 = Zr + H2O =>
ZrO2 + 2 H2 = Zr + 2 H2O
Zn + HCl = ZnCl2 + H2 = =>
Zn + 2 HCl = ZnCl2 + H2
FeCl3 + KBr = FeCl2 + KCl + Br2 =>
2 FeCl3 + 2 KBr = 2 FeCl2 + 2 KCl + Br2
Mg(s) + HCl(aq) = H2(g) + Mg{2+} + Cl{-}(aq) =>
Mg(s) + 2 HCl(aq) = H2(g) + Mg{2+} + 2 Cl{-}(aq)
CH3CH2CH2CH2OH + HBr = CH3CH2CH2Br + H2O =>
3 CH3CH2CH2CH2OH + 4 HBr = 4 CH3CH2CH2Br + 3 H2O
FeCl3 + Na2SiO3 + H2O = Fe(OH)3 + NaCl + SiO2 =>
2 FeCl3 + 3 Na2SiO3 + 3 H2O = 2 Fe(OH)3 + 6 NaCl + 3 SiO2
K2Cr2O7 + H2SO4 + KIO3 = KIO4 + Cr2(SO4)3 + K2SO4 + H2O =>
K2Cr2O7 + 4 H2SO4 + 3 KIO3 = 3 KIO4 + Cr2(SO4)3 + K2SO4 + 4 H2O
Na + HCl = H2 + NaCl =>
2 Na + 2 HCl = H2 + 2 NaCl
Ag2S + O2 = AgO + SO2 =>
Ag2S + 2 O2 = 2 AgO + SO2
KF = K2 + F2 =>
2 KF = K2 + F2
Ca(OH)2 + HS = CaS2 + H2O =>
Ca(OH)2 + 2 HS = CaS2 + 2 H2O
S8 + O2 = SO2 =>
S8 + 8 O2 = 8 SO2
C3H8O + MnO4{-} + H{+} = C2H5OOH + Mn{2+} + H2O =>
10 C3H8O + 6 MnO4{-} + 18 H{+} = 15 C2H5OOH + 6 Mn{2+} + 4 H2O
Cu(CH3CO2)2H2O + NaOH = Cu(OH)2 + NaCH3CO2 + H2O =>
Cu(CH3CO2)2H2O + 2 NaOH = Cu(OH)2 + 2 NaCH3CO2 + H2O
H2SO4(aq) + KO(aq) = KSO4(aq) + H2O(l) =>
H2SO4(aq) + KO(aq) = KSO4(aq) + H2O(l)
AlCl3 + NH4OH = Al(OH)3 + (NH4)Cl =>
AlCl3 + 3 NH4OH = Al(OH)3 + 3(NH4)Cl
CH4N2O + C12H22O11 + C2H6O = C6H13NO2 + H2O =>
4 CH4N2O + C12H22O11 + 16 C2H6O = 8 C6H13NO2 + 15 H2O
Ca(HCO3)2 + HNO3 = H2O + CO2 + Ca(NO3)2 =>
Ca(HCO3)2 + 2 HNO3 = 2 H2O + 2 CO2 + Ca(NO3)2
Pb(NO3)2 + K2(SO4) = Pb(SO4)2 + K + NO3 =>
Pb(NO3)2 + 2 K2(SO4) = Pb(SO4)2 + 4 K + 2 NO3
HBr + (NH4)2S = H2S + NH4Br =>
2 HBr + (NH4)2S = H2S + 2 NH4Br
CuSO4(ac) + NaOH(ac) = Cu(OH)2(s) + Na2SO4(ac) =>
CuSO4(ac) + 2 NaOH(ac) = Cu(OH)2(s) + Na2SO4(ac)
Na2CO3 + HCl = CO2 + H2O + NaCl =>
Na2CO3 + 2 HCl = CO2 + H2O + 2 NaCl
HH + FF = HFHF =>
HH + FF = HFHF
Sn(SO4)2 + NH4OH = Sn(OH)4 + (NH4)2SO4 =>
Sn(SO4)2 + 4 NH4OH = Sn(OH)4 + 2(NH4)2SO4
C3H4 + O2 = CO2 + H2O =>
C3H4 + 4 O2 = 3 CO2 + 2 H2O
C2H5OH + O2 = CO2(OH)2 + H2O =>
C2H5OH + 4 O2 = 2 CO2(OH)2 + H2O
H[PbCl3] + H2 = H2[PbCl3] =>
2 H[PbCl3] + H2 = 2 H2[PbCl3]
HNO3 + K2OH = K2NO3 + H2O =>
HNO3 + K2OH = K2NO3 + H2O
Ca + AlCl3 = CaCl2 + Al =>
3 Ca + 2 AlCl3 = 3 CaCl2 + 2 Al
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