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2 Cu + 3 O2 + 2 CO2 + 2 H2 = 2 Cu(OH)2CO3
ZnC4H6O4 + H2O = Zn(OH)2 + CH3COOH =>
ZnC4H6O4 + 2 H2O = Zn(OH)2 + 2 CH3COOH
P + Cl2 = PCl5 =>
2 P + 5 Cl2 = 2 PCl5
CH3OH = CO + H2 =>
CH3OH = CO + 2 H2
C5H5 + Fe = Fe(C5H5)2 =>
2 C5H5 + Fe = Fe(C5H5)2
Ba(s) + MgI2(aq) = BaI2 + Mg =>
Ba(s) + MgI2(aq) = BaI2 + Mg
NaHSiO3 + H2SO4 = NaHSO4 + H2SiO3 =>
NaHSiO3 + H2SO4 = NaHSO4 + H2SiO3
Na + CO2 = Na2O + C =>
4 Na + CO2 = 2 Na2O + C
Cu + H2SO4 = CuSO4 + H2S + H2O =>
4 Cu + 5 H2SO4 = 4 CuSO4 + H2S + 4 H2O
Cu2S(s) + O2(g) = Cu(s) + SO2(g) =>
Cu2S(s) + O2(g) = 2 Cu(s) + SO2(g)
CrCl2 + NaOH = Cr(OH)2 + NaCl =>
CrCl2 + 2 NaOH = Cr(OH)2 + 2 NaCl
K2Se + Co + Se = KCoSe2 =>
K2Se + 2 Co + 3 Se = 2 KCoSe2
Na2CO3 + AlCl3 = NaCl + Al2C3O9 =>
3 Na2CO3 + 2 AlCl3 = 6 NaCl + Al2C3O9
MgBr2 + Na3PO4 = NaBr + Mg3(PO4)2 =>
3 MgBr2 + 2 Na3PO4 = 6 NaBr + Mg3(PO4)2
Ca(OH) + Cl2 = CaCl2 + (OH)2 =>
2 Ca(OH) + 2 Cl2 = 2 CaCl2 + (OH)2
Ga2O3 = Ga + O2 =>
2 Ga2O3 = 4 Ga + 3 O2
Fe(SCN)3 + Na2SO4 = NaSCN + Fe2(SO4)3 =>
2 Fe(SCN)3 + 3 Na2SO4 = 6 NaSCN + Fe2(SO4)3
Ca + OH + N + O3 = CaOHNO3 =>
Ca + OH + N + O3 = CaOHNO3
K2Se + Co + Se = KCoSe2 =>
K2Se + 2 Co + 3 Se = 2 KCoSe2
Cu(NO3)2 + NO + H2O + S = CuS + H2NO3(aq) =>
Cu(NO3)2 + 2 NO + 4 H2O + S = CuS + 4 H2NO3(aq)
Na2O + KCl = NaCl + K2O =>
Na2O + 2 KCl = 2 NaCl + K2O
Ca(OH)2 + H2(CO3) = Ca(CO3) + HOH =>
Ca(OH)2 + H2(CO3) = Ca(CO3) + 2 HOH
R + X2 = R2X3 =>
4 R + 3 X2 = 2 R2X3
K2Se + Co + Se = KCoSe2 =>
K2Se + 2 Co + 3 Se = 2 KCoSe2
HI + Ba(OH)2 = BaI2 + H2O =>
2 HI + Ba(OH)2 = BaI2 + 2 H2O
CuCl2 + K2S = CuS + KCl =>
CuCl2 + K2S = CuS + 2 KCl
Pb(NO3)2 + (NH4)3PO4 = Pb3(PO4)2 + NH4NO3 =>
3 Pb(NO3)2 + 2(NH4)3PO4 = Pb3(PO4)2 + 6 NH4NO3
HIO4 + HI = I + H2O =>
HIO4 + 7 HI = 8 I + 4 H2O
H2SO4 + FeCl2 + HCl = FeCl3 + S + H2O =>
H2SO4 + 6 FeCl2 + 6 HCl = 6 FeCl3 + S + 4 H2O
MgCl3 = MgCl2 + Cl2 =>
2 MgCl3 = 2 MgCl2 + Cl2
SO2 + OH2 = H2SO3 =>
SO2 + OH2 = H2SO3
P4 + S = P2S3 =>
P4 + 6 S = 2 P2S3
KMnO4(ac) + H2SO4(ac) + FeSO4(ac) = Fe2(SO4)3(ac) + MnSO4(ac) + K2SO4(ac) + H2O(l) =>
2 KMnO4(ac) + 8 H2SO4(ac) + 10 FeSO4(ac) = 5 Fe2(SO4)3(ac) + 2 MnSO4(ac) + K2SO4(ac) + 8 H2O(l)
NiCl2 + K2S = KCl + NiS =>
NiCl2 + K2S = 2 KCl + NiS
C6H8O3 + H2O = C7H6O3 + CH4O =>
7 C6H8O3 + H2O = 5 C7H6O3 + 7 CH4O
Pb(NO3)2 + NH4OH = Pb(NO3)2NH4OH =>
Pb(NO3)2 + NH4OH = Pb(NO3)2NH4OH
CuSO4 + Fe = FeSO4 + Cu =>
CuSO4 + Fe = FeSO4 + Cu
Na2CO3 + H2O + CO2 = NaHCO3 =>
Na2CO3 + H2O + CO2 = 2 NaHCO3
BaCl2HCl = HCl2BaCl =>
BaCl2HCl = HCl2BaCl
C2H5S + O2 = CO2 + H2O + SO2 =>
4 C2H5S + 17 O2 = 8 CO2 + 10 H2O + 4 SO2
LiOH + CuSO4 = Li2SO4 + Cu(OH)2 =>
2 LiOH + CuSO4 = Li2SO4 + Cu(OH)2
Mg(HSO4)2 = Mg(SO4)2 + H2 =>
Mg(HSO4)2 = Mg(SO4)2 + H2
(SnOH)2SO4 + H2 = (SnOH)2 + H2SO4 =>
(SnOH)2SO4 + H2 = (SnOH)2 + H2SO4
ClC6H4NH2 + HCl = ClC6H4NH3{+} + Cl{-} =>
ClC6H4NH2 + HCl = ClC6H4NH3{+} + Cl{-}
C + H2O = CH4 + CO2 =>
2 C + 2 H2O = CH4 + CO2
O8 + C2H6 = CO2 + H2O =>
7 O8 + 8 C2H6 = 16 CO2 + 24 H2O
H2S + MgCl2 = MgS + H2Cl2 =>
H2S + MgCl2 = MgS + H2Cl2
Mn + HNO3 = Mn(NO3)2 + H2 =>
Mn + 2 HNO3 = Mn(NO3)2 + H2
H3Po4 + Al(OH)3 = AlPo4 + H2O =>
H3Po4 + Al(OH)3 = AlPo4 + 3 H2O
BaOSO3 = BaO3SO =>
BaOSO3 = BaO3SO
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