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2 HS = H2 + S2
HC8KH4O4 + Ba(OH)2 = H2O + Ba(C8KH4O4)2 =>
2 HC8KH4O4 + Ba(OH)2 = 2 H2O + Ba(C8KH4O4)2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Ba(NO3)2(aq) + K2SO4(aq) = BaSO4 + KNO3 =>
Ba(NO3)2(aq) + K2SO4(aq) = BaSO4 + 2 KNO3
Ba(OH)2 + H3(PO4) = Ba3(PO4)2 + H2O =>
3 Ba(OH)2 + 2 H3(PO4) = Ba3(PO4)2 + 6 H2O
Pa + Zn(C2H3O2)2 = Zn + Pa(C2H3O2) =>
2 Pa + Zn(C2H3O2)2 = Zn + 2 Pa(C2H3O2)
C2H6 + Br2 = CHBr3 + HBr =>
C2H6 + 5 Br2 = 2 CHBr3 + 4 HBr
KClO3(s) = KClO2 + O2(g) =>
2 KClO3(s) = 2 KClO2 + O2(g)
C2H3Cl3 + CH4 = (C2H3Cl)2 + H =>
2 C2H3Cl3 + 8 CH4 = 3(C2H3Cl)2 + 20 H
C2H4O2 + O2 = CO2 + H2O =>
C2H4O2 + 2 O2 = 2 CO2 + 2 H2O
CO + K2O = K2CO2 =>
CO + K2O = K2CO2
Al(NO3)3 + NH4Cl + NH3 = (Al(NH3)4)Cl3 + HNO3 =>
Al(NO3)3 + 3 NH4Cl + NH3 = (Al(NH3)4)Cl3 + 3 HNO3
Pb + SnNO3 = Pb(NO3)4 + Sn =>
Pb + 4 SnNO3 = Pb(NO3)4 + 4 Sn
N2 + O3 + CH4 = HCN + H2O =>
N2 + O3 + 2 CH4 = 2 HCN + 3 H2O
ZnO2 + C = Zn + CO =>
ZnO2 + 2 C = Zn + 2 CO
Al() + CuSO4(aq) = AlSO4 + Cu(g) =>
Al() + CuSO4(aq) = AlSO4 + Cu(g)
NaOH + Zn(CH3COO)2 = Zn(OH)2 + Na + CH3COO =>
2 NaOH + Zn(CH3COO)2 = Zn(OH)2 + 2 Na + 2 CH3COO
Cu(No3)2 + NaOH = Cu(OH)2 + Na(No3) =>
Cu(No3)2 + 2 NaOH = Cu(OH)2 + 2 Na(No3)
Fe2O3 + H2CO3 = H2O + Fe2(CO3)3 =>
Fe2O3 + 3 H2CO3 = 3 H2O + Fe2(CO3)3
C12H22 + H2O = C2H5OH + CO =>
4 C12H22 + 25 H2O = 23 C2H5OH + 2 CO
CH3CHCH3 + Br2 = CH3CHBrCH3 =>
2 CH3CHCH3 + Br2 = 2 CH3CHBrCH3
Pb(NO3)2(aq)BaCl2(aq) = PbCl2Ba(NO3)2 =>
Pb(NO3)2(aq)BaCl2(aq) = PbCl2Ba(NO3)2
HC1 + AgNO3 = AgC1 + NHO3 =>
HC1 + AgNO3 = AgC1 + NHO3
H2SO3(aq) + Zn(OH)2(s) = ZnSO3(s) + H2O(l) =>
H2SO3(aq) + Zn(OH)2(s) = ZnSO3(s) + 2 H2O(l)
C4H9Br = C4H9{+} + Br{-} =>
C4H9Br = C4H9{+} + Br{-}
Br2 + Hg = Hg2{+} + Br({-}) =>
Br2 + 4 Hg = 2 Hg2{+} + 2 Br({-})
Pb(NO3)2 + KOH = Pb(OH)4 + K2NO3 =>
Pb(NO3)2 + 4 KOH = Pb(OH)4 + 2 K2NO3
Ce2O7 + H2O = HCeO4 =>
Ce2O7 + H2O = 2 HCeO4
NiSO4 + CuSO4 = CuNi(SO4)2 =>
NiSO4 + CuSO4 = CuNi(SO4)2
AlCl3 + Na2SO4 = Al2(SO4)3 + NaCl =>
2 AlCl3 + 3 Na2SO4 = Al2(SO4)3 + 6 NaCl
OCl{-} + (S2O3)2{-} + OH{-} = (SO4)2{-} + Cl{-} + H2O =>
19 OCl{-} + 2(S2O3)2{-} + 2 OH{-} = 4(SO4)2{-} + 19 Cl{-} + H2O
KMnO4 + Fe(SO4) + H2SO4 = MnSO4 + Fe2(SO4)3 + K2(SO4) + H2O =>
2 KMnO4 + 10 Fe(SO4) + 8 H2SO4 = 2 MnSO4 + 5 Fe2(SO4)3 + K2(SO4) + 8 H2O
NaOH + NH4Cl = NaCl + NOH5 =>
NaOH + NH4Cl = NaCl + NOH5
CuCl2 + H2O + Zn = CuO + ZnCl2 + H2 =>
CuCl2 + H2O + Zn = CuO + ZnCl2 + H2
ZnCl2 + H2SO4 = ZnSO4 + HCl =>
ZnCl2 + H2SO4 = ZnSO4 + 2 HCl
Pb(s)O2(g) = PbO2(s) =>
Pb(s)O2(g) = PbO2(s)
AuBr3 = Au + Br2 =>
2 AuBr3 = 2 Au + 3 Br2
KCl + Al(NO3)3 = AlCl3 + K(NO3) =>
3 KCl + Al(NO3)3 = AlCl3 + 3 K(NO3)
Zn(CH3COO)2 + Na2SO4 = ZnSO4 + NaCH3COO =>
Zn(CH3COO)2 + Na2SO4 = ZnSO4 + 2 NaCH3COO
CrO(O2)2 + H{+} = Cr3{+} + O2 + H2O =>
12 CrO(O2)2 + 4 H{+} = 4 Cr3{+} + 29 O2 + 2 H2O
HO2(HO)2 = HO2 + HO =>
HO2(HO)2 = HO2 + 2 HO
Fe2S3 + BaCO3 = BaS + Fe2(CO3)3 =>
Fe2S3 + 3 BaCO3 = 3 BaS + Fe2(CO3)3
C16H34 + O2 = CH4 + CO2 =>
2 C16H34 + 15 O2 = 17 CH4 + 15 CO2
Fe2S + HNO3 = Fe(NO3)3 + SO2 + N2O + H2O =>
4 Fe2S + 34 HNO3 = 8 Fe(NO3)3 + 4 SO2 + 5 N2O + 17 H2O
SrCl2 + CuSO4 = SrSO4 + CuCl2 =>
SrCl2 + CuSO4 = SrSO4 + CuCl2
Ca(s) + HCl = CaCl2 + H2 =>
Ca(s) + 2 HCl = CaCl2 + H2
KMnO4 + FeSO2 + H2SO4 = MnSO4 + Fe2(SO4)3 + K2SO4 + H2O =>
2 KMnO4 + 2 FeSO2 + 4 H2SO4 = 2 MnSO4 + Fe2(SO4)3 + K2SO4 + 4 H2O
H2C2O4*2H2O(s) + K2Cr2O7(s) = K[Cr(C2O4)2(H2O)2]*2H2O + CO2 + H2O =>
7 H2C2O4*2H2O(s) + K2Cr2O7(s) = 2 K[Cr(C2O4)2(H2O)2]*2H2O + 6 CO2 + 13 H2O
H2S + (Cr2O7){-}2 + H{+} = S + Cr3{+} + H2O =>
37 H2S + 6(Cr2O7){-}2 + 10 H{+} = 37 S + 4 Cr3{+} + 42 H2O
NaCl(s) = Na + Cl(g) =>
NaCl(s) = Na + Cl(g)
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