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8 NH4I + 9 H2SO4 = 4 H2O + 4 I2 + 8 NH4HSO4 + H2S
Ba(OH)2 + KNO3 = Ba(NO3)2 + KOH =>
Ba(OH)2 + 2 KNO3 = Ba(NO3)2 + 2 KOH
CH4 + Cl2 = CCl4 + HCl =>
CH4 + 4 Cl2 = CCl4 + 4 HCl
Ba(OH)2 + KNO3 = Ba(NO3)2 + KOH =>
Ba(OH)2 + 2 KNO3 = Ba(NO3)2 + 2 KOH
Al = Al{3+} + {-} =>
Al = Al{3+} + 3e
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
KNO3 + Na2CO3 = K2CO3 + NaNO3 =>
2 KNO3 + Na2CO3 = K2CO3 + 2 NaNO3
Zn + H2SO4 = ZnSO4 + H2 =>
Zn + H2SO4 = ZnSO4 + H2
Ag + H2SO4 = Ag2SO4 + H2 =>
2 Ag + H2SO4 = Ag2SO4 + H2
K2CrO4 + NaOH + Ba(NO3)2 = BaCrO4 + KOH + NaNO3 =>
K2CrO4 + 2 NaOH + Ba(NO3)2 = BaCrO4 + 2 KOH + 2 NaNO3
CuO + H3BO3 = Cu3(BO3)2 + H2O =>
3 CuO + 2 H3BO3 = Cu3(BO3)2 + 3 H2O
MgCl2 + NaOH = Mg(OH)2 + NaCl =>
MgCl2 + 2 NaOH = Mg(OH)2 + 2 NaCl
Fe + NaOH = Fe(OH)2 + Na =>
Fe + 2 NaOH = Fe(OH)2 + 2 Na
C8H10 = C7H8 + CH4 =>
10 C8H10 = 11 C7H8 + 3 CH4
C2H6O + O2 = CO2 + H2O =>
C2H6O + 3 O2 = 2 CO2 + 3 H2O
KOH + HAsO3 = K3AsO4 + H2O =>
3 KOH + HAsO3 = K3AsO4 + 2 H2O
D = D2 =>
2 D = D2
K2CrO4 + SO2 + H2O = K2SO4 + Cr2(SO4)3 + H2 =>
2 K2CrO4 + 5 SO2 + 2 H2O = 2 K2SO4 + Cr2(SO4)3 + 2 H2
LiOH + AlCl3 = LiCl + Al(OH)3 =>
3 LiOH + AlCl3 = 3 LiCl + Al(OH)3
Zn + MnO2 + H3O{+} = Zn{2+} + Mn2O3 + H2O =>
Zn + 2 MnO2 + 2 H3O{+} = Zn{2+} + Mn2O3 + 3 H2O
KOHMgCl2 = KCl2MgOH =>
KOHMgCl2 = KCl2MgOH
C17H35COONa + Ca(HCO3)2 = (C17H35COO)2Ca + NaHCO3 =>
2 C17H35COONa + Ca(HCO3)2 = (C17H35COO)2Ca + 2 NaHCO3
H{+} + Cr2O7{2}{-} + Sn{2}{+} = Sn{4} + Cr{3}{+} + H2O =>
14 H{+} + Cr2O7{2}{-} + 5 Sn{2}{+} = 5 Sn{4} + 2 Cr{3}{+} + 7 H2O
C2H5OH + H2SO4 = SO2 + C + H2O =>
C2H5OH + 2 H2SO4 = 2 SO2 + 2 C + 5 H2O
NaOH + Na2S = Na + H2S + O2 =>
2 NaOH + Na2S = 4 Na + H2S + O2
NaOH(aq) + HCl(aq) = NaCl(aq) + OH2(g) =>
NaOH(aq) + HCl(aq) = NaCl(aq) + OH2(g)
Sn(s) + HNO3(aq) = SnO2(s) + NO2(g) + H2O(l) =>
Sn(s) + 4 HNO3(aq) = SnO2(s) + 4 NO2(g) + 2 H2O(l)
NaNO2 + Fe2(SO4)3 + H2SO4 = Na2SO4 + Fe(SO4)3 + NO + H2O =>
6 NaNO2 + Fe2(SO4)3 + 6 H2SO4 = 3 Na2SO4 + 2 Fe(SO4)3 + 6 NO + 6 H2O
HNO3 + FeS = Fe(NO3)3 + Fe2(SO4)3 + NO2 + H2O =>
30 HNO3 + 3 FeS = Fe(NO3)3 + Fe2(SO4)3 + 27 NO2 + 15 H2O
NO2(g) + H2(g) = NH3(g) + H2O(g) =>
2 NO2(g) + 7 H2(g) = 2 NH3(g) + 4 H2O(g)
HF + CCl4 = HCl4 + FC =>
HF + CCl4 = HCl4 + FC
C2H5OH + Na2CrO4 + H2O = CH3COONa + Na[Cr(OH)4] + NaOH =>
3 C2H5OH + 4 Na2CrO4 + 4 H2O = 3 CH3COONa + 4 Na[Cr(OH)4] + NaOH
Na2S + KClO3 = K2S + NaCl + O3 =>
Na2S + 2 KClO3 = K2S + 2 NaCl + 2 O3
AsO4{4-} + S{2-} + H{+} = AsO3{3-} + S + H2O =>
2 AsO4{4-} + S{2-} + 4 H{+} = 2 AsO3{3-} + S + 2 H2O
Hg2 + HCl = Hg2Cl2(s) + H =>
Hg2 + 2 HCl = Hg2Cl2(s) + 2 H
SO2 + H2 = H2S + H2O =>
SO2 + 3 H2 = H2S + 2 H2O
Li2O + H2O = LiOH =>
Li2O + H2O = 2 LiOH
O2 + NO2 + H2O = HNO3 =>
O2 + 4 NO2 + 2 H2O = 4 HNO3
Mg + H2O + N2 = NH3 + MgNO2 =>
6 Mg + 12 H2O + 7 N2 = 8 NH3 + 6 MgNO2
C12H22O + H2O = C2H5OH + CO2 =>
3 C12H22O + 18 H2O = 17 C2H5OH + 2 CO2
Fe2(SO4)3 + Ca(OH)2 + H2O = H3OFe3(SO4)2(OH)6 + CaSO4 =>
3 Fe2(SO4)3 + 5 Ca(OH)2 + 4 H2O = 2 H3OFe3(SO4)2(OH)6 + 5 CaSO4
CH3CHClKCN = CH3CHCNKCl =>
CH3CHClKCN = CH3CHCNKCl
C4H8 + H2O = C4H9(OH) =>
C4H8 + H2O = C4H9(OH)
Li2O + H2O = LiOH =>
Li2O + H2O = 2 LiOH
CH3(CH2)2OH(l) + O2(g) = CO2(g) + H2O(g) =>
2 CH3(CH2)2OH(l) + 9 O2(g) = 6 CO2(g) + 8 H2O(g)
Pb(NO3)2 + AlCl3 = PbCl2 + Al(NO3)3 =>
3 Pb(NO3)2 + 2 AlCl3 = 3 PbCl2 + 2 Al(NO3)3
KI + HgNO3 = KNO3 + HgI =>
KI + HgNO3 = KNO3 + HgI
NO2 + NaHS = N2 + NaHSO3 =>
6 NO2 + 4 NaHS = 3 N2 + 4 NaHSO3
CH3COOHKOH = CH3COOKOH2 =>
CH3COOHKOH = CH3COOKOH2
Sn2 + HF = H2 + SnF2 =>
Sn2 + 4 HF = 2 H2 + 2 SnF2
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