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4 B + 3 SiO2 = 3 Si + 2 B2O3
HNO3 + P4 + H2O = H3PO4 + NO =>
20 HNO3 + 3 P4 + 8 H2O = 12 H3PO4 + 20 NO
(NH4)2SO4(aq) + KOH(aq) = K2SO4(aq) + NH3(g) + H2O =>
(NH4)2SO4(aq) + 2 KOH(aq) = K2SO4(aq) + 2 NH3(g) + 2 H2O
C2H6O + NH4VO3 + H2SO4 = C2H4O + (NH4)2SO4 + H2O + VOSO4 =>
C2H6O + 2 NH4VO3 + 3 H2SO4 = C2H4O + (NH4)2SO4 + 4 H2O + 2 VOSO4
KMnO4 + KNO2 + H2SO4 = Mn(HSO4)2 + H2O + KNO3 + KHSO4 =>
2 KMnO4 + 5 KNO2 + 6 H2SO4 = 2 Mn(HSO4)2 + 3 H2O + 5 KNO3 + 2 KHSO4
HI = H + I =>
HI = H + I
TiO2 + C + Cl2 = TiCl4 + COCl2 =>
TiO2 + 2 C + 4 Cl2 = TiCl4 + 2 COCl2
Mg2Si2O6 + SiO2 + H2O = Mg7Si8O22(OH)2 =>
7 Mg2Si2O6 + 2 SiO2 + 2 H2O = 2 Mg7Si8O22(OH)2
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
BaSO4 + H2SO4 = Ba(HSO4)2 =>
BaSO4 + H2SO4 = Ba(HSO4)2
NaO + H = OHNa =>
NaO + H = OHNa
KMnO4(aq) + KCl(aq) + H2SO4(aq) = MnSO4(aq) + K2SO4(aq) + Cl2(g) + H3O =>
2 KMnO4(aq) + 18 KCl(aq) + 12 H2SO4(aq) = 2 MnSO4(aq) + 10 K2SO4(aq) + 9 Cl2(g) + 8 H3O
Hg2(NO3)2 + NaOH = HgOH + NaNO3 =>
Hg2(NO3)2 + 2 NaOH = 2 HgOH + 2 NaNO3
N + O = N2O4 =>
2 N + 4 O = N2O4
C6H5(CH3)2 + KMnO4 + KOH = C6H5COOK + K2MnO4 + H2O =>
7 C6H5(CH3)2 + 61 KMnO4 + 69 KOH = 8 C6H5COOK + 61 K2MnO4 + 53 H2O
C7H5N3O6(s) = N2 + H2O + CO + C =>
2 C7H5N3O6(s) = 3 N2 + 5 H2O + 7 CO + 7 C
C2H5Cl + NH3 = C2H7N + NH4Cl =>
C2H5Cl + 2 NH3 = C2H7N + NH4Cl
NaCl + Na2SO4 = Na + Cl2SO4 =>
2 NaCl + Na2SO4 = 4 Na + Cl2SO4
GaBr3 + Na2SO3 = Ga2(SO3)3 + NaBr =>
2 GaBr3 + 3 Na2SO3 = Ga2(SO3)3 + 6 NaBr
Ag(OH)2 + HNO3 = Ag(NO3)2 + H2O =>
Ag(OH)2 + 2 HNO3 = Ag(NO3)2 + 2 H2O
IO = I2 + O2 =>
2 IO = I2 + O2
Sn + Pb(NO3)2 = Pb + Sn(NO3)4 =>
Sn + 2 Pb(NO3)2 = 2 Pb + Sn(NO3)4
CH4 = C + H =>
CH4 = C + 4 H
Ca + Cl2 = CaCl2 =>
Ca + Cl2 = CaCl2
CH3COOH + CuSO4 = CH3COOCu + SO4 + H =>
CH3COOH + CuSO4 = CH3COOCu + SO4 + H
Cu2 + OH = Cu(OH)2 =>
Cu2 + 4 OH = 2 Cu(OH)2
FeS + NO3{-} + H{+} = NO + SO42{-} + Fe3{+} + H2O =>
9 FeS + 250 NO3{-} + 244 H{+} = 250 NO + 9 SO42{-} + 3 Fe3{+} + 122 H2O
KOH + HBr = KBr + H2O =>
KOH + HBr = KBr + H2O
FeCl3 + KSCN = Fe(SCN)3 + KCl =>
FeCl3 + 3 KSCN = Fe(SCN)3 + 3 KCl
C2H50H + C3H7COOH = C3H7COOC2H5 + H2O =>
4 C2H50H + 145 C3H7COOH = 98 C3H7COOC2H5 + 94 H2O
FeCl3 + NH4SCN = [FeSCN]Cl2(aq) + NH4Cl(aq) =>
FeCl3 + NH4SCN = [FeSCN]Cl2(aq) + NH4Cl(aq)
Al + NaOH = Na3AlO3 + H2 =>
2 Al + 6 NaOH = 2 Na3AlO3 + 3 H2
C2H2(g) + O2(g) = CO2(g) + H2O(l) =>
2 C2H2(g) + 5 O2(g) = 4 CO2(g) + 2 H2O(l)
NaMnO4 + H2S = MnO2 + S + NaOH + H2O =>
2 NaMnO4 + 3 H2S = 2 MnO2 + 3 S + 2 NaOH + 2 H2O
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
Na2S + K = K2S + Na =>
Na2S + 2 K = K2S + 2 Na
FeS + Cl2 = FeCl3 + SCl2 =>
2 FeS + 5 Cl2 = 2 FeCl3 + 2 SCl2
Al(s) + S(s) = Al2S3(s) =>
2 Al(s) + 3 S(s) = Al2S3(s)
Mg + H2SO4 = MgSO4 + H2 =>
Mg + H2SO4 = MgSO4 + H2
K2S + CuSO4 = Cu2S2 + K2(SO4) =>
2 K2S + 2 CuSO4 = Cu2S2 + 2 K2(SO4)
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
HCl(aq) + Li2CO3(aq) = H2CO3(s) + LiCl(aq) =>
2 HCl(aq) + Li2CO3(aq) = H2CO3(s) + 2 LiCl(aq)
Fe2(SO4)3 + Na3(PO4) = Fe(PO4) + Na2(SO4) =>
Fe2(SO4)3 + 2 Na3(PO4) = 2 Fe(PO4) + 3 Na2(SO4)
Fe(No3)3 + Ba(OH)2 = Fe(OH)3 + Ba(No3)2 =>
2 Fe(No3)3 + 3 Ba(OH)2 = 2 Fe(OH)3 + 3 Ba(No3)2
Cu(NO3)2 + CH3COOH = Cu(CH3COO)2 + HNO3 =>
Cu(NO3)2 + 2 CH3COOH = Cu(CH3COO)2 + 2 HNO3
PB(NO3)2(aq) + KI(aq) = PBI2(s) + KNO3(aq) =>
PB(NO3)2(aq) + 2 KI(aq) = PBI2(s) + 2 KNO3(aq)
CuCO3 + HCl = CuCl2 + H2O + CO2 =>
CuCO3 + 2 HCl = CuCl2 + H2O + CO2
Ni + Pb(C2H3O2)2 = C4H6NiO4 + Pb =>
Ni + Pb(C2H3O2)2 = C4H6NiO4 + Pb
Li2O + H2O = LiOH =>
Li2O + H2O = 2 LiOH
Zn(NO3)2 + Sn = Sn(NO3)3 + Zn =>
3 Zn(NO3)2 + 2 Sn = 2 Sn(NO3)3 + 3 Zn
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