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2 Cr2O3 + 3 Si + 3 CaO = 4 Cr + 3 CaSiO3
Zn(s) + AgCl(s) = ZnCl2 + Ag(s) =>
Zn(s) + 2 AgCl(s) = ZnCl2 + 2 Ag(s)
CuO + HCHO = HCOOH + Cu2O =>
2 CuO + HCHO = HCOOH + Cu2O
Na2CO3(aq) + Al(NO3)3(aq) = NaNO3(aq) + Al2(CO3)3 =>
3 Na2CO3(aq) + 2 Al(NO3)3(aq) = 6 NaNO3(aq) + Al2(CO3)3
H2SO3 + CH3COOH = H2SO3H + CH3COO =>
H2SO3 + CH3COOH = H2SO3H + CH3COO
Ga2O3(s) + HCl = GaCl3 + H2O =>
Ga2O3(s) + 6 HCl = 2 GaCl3 + 3 H2O
Mg(OH)2 + (H2SO3) = Mg(HSO3)2 + H2O =>
Mg(OH)2 + 2(H2SO3) = Mg(HSO3)2 + 2 H2O
CuSO4 + NaCl = CuCl2 + Na2SO4 =>
CuSO4 + 2 NaCl = CuCl2 + Na2SO4
SO2 + I2 = SO2I2 =>
SO2 + I2 = SO2I2
KOH + Ba(CH3COO)2 = KCH3COO + Ba(OH)2 =>
2 KOH + Ba(CH3COO)2 = 2 KCH3COO + Ba(OH)2
SnI4(s) + H2O(l) = SnO2(s) + HI(s) =>
SnI4(s) + 2 H2O(l) = SnO2(s) + 4 HI(s)
Mg + H2O = MgH + O2 =>
4 Mg + 2 H2O = 4 MgH + O2
C6H15 + Cl = CH + ClH =>
C6H15 + 9 Cl = 6 CH + 9 ClH
Mg(s) + NaOH(aq) = Mg(OH)2(aq) + Na(s) =>
Mg(s) + 2 NaOH(aq) = Mg(OH)2(aq) + 2 Na(s)
CaCl2 + Na3Po4 = Ca3(Po4)2 + NaCl =>
3 CaCl2 + 2 Na3Po4 = Ca3(Po4)2 + 6 NaCl
Fe{3+} + C6H8O6 = Fe{2+} + C6H6O6 + H{+} =>
2 Fe{3+} + C6H8O6 = 2 Fe{2+} + C6H6O6 + 2 H{+}
Ba(NO3)2(aq) + CuSO4(aq) = BaSO4(s) + Cu(NO3)2(aq) =>
Ba(NO3)2(aq) + CuSO4(aq) = BaSO4(s) + Cu(NO3)2(aq)
Pb(C2H3O2)4 + K2SO4 = Pb2(SO4)4 + KC2H3O2 =>
2 Pb(C2H3O2)4 + 4 K2SO4 = Pb2(SO4)4 + 8 KC2H3O2
ICl + HI = HCl + I =>
ICl + HI = HCl + 2 I
C6H6(liq) + O2(g) = CO(g) + H2O(g) =>
2 C6H6(liq) + 9 O2(g) = 12 CO(g) + 6 H2O(g)
Pb(NO3)2 + KI = PbI2 + KNO3 =>
Pb(NO3)2 + 2 KI = PbI2 + 2 KNO3
ZnO + Mg = Mg2O3 + Zn =>
3 ZnO + 2 Mg = Mg2O3 + 3 Zn
C6H9O + O2 = H2O + CO2 =>
4 C6H9O + 31 O2 = 18 H2O + 24 CO2
S + HNO3 = SO2 + NO2 + H2O =>
S + 4 HNO3 = SO2 + 4 NO2 + 2 H2O
PBO + PBS = PB + SO =>
PBO + PBS = 2 PB + SO
Sr(NO3)2 + Na2CO3(aq) = SrCO3(s) + NaNO3(aq) =>
Sr(NO3)2 + Na2CO3(aq) = SrCO3(s) + 2 NaNO3(aq)
MnO2 + HCl = MnCl2(aq) + Cl + H2O =>
MnO2 + 4 HCl = MnCl2(aq) + 2 Cl + 2 H2O
Ne + H = NeH =>
Ne + H = NeH
K2SO3(aq) + HBr(aq) = H2SO3(aq) + KBr(aq) =>
K2SO3(aq) + 2 HBr(aq) = H2SO3(aq) + 2 KBr(aq)
NiCl2 + H2O = NiO + HCl =>
NiCl2 + H2O = NiO + 2 HCl
PbC2H3O2 + AgNO3 = AgC2H3O2 + PbNO3 =>
PbC2H3O2 + AgNO3 = AgC2H3O2 + PbNO3
Cu(CH3COO)2*H2O + C2H5NO2 = C4H8CuN2O4*H2O + CH3COOH =>
Cu(CH3COO)2*H2O + 2 C2H5NO2 = C4H8CuN2O4*H2O + 2 CH3COOH
Cr(NO3)6 + (NH4)2S = (NH4)2 + (NO3)6 + CrS =>
Cr(NO3)6 + (NH4)2S = (NH4)2 + (NO3)6 + CrS
H2O + NaHCO3 + Al = NaAlO2 + CO2 + H2 =>
2 H2O + 2 NaHCO3 + 2 Al = 2 NaAlO2 + 2 CO2 + 3 H2
C8H17Br + KOH = C5H10 + KBr + H2O =>
5 C8H17Br + 5 KOH = 8 C5H10 + 5 KBr + 5 H2O
CaBr2 + Cu(SO4)2 = Ca(SO4)2 + CuBr2 =>
CaBr2 + Cu(SO4)2 = Ca(SO4)2 + CuBr2
C + O2 = CO2 =>
C + O2 = CO2
C2O4{2-} + BrO3{-} + H{+} = HOBr + CO2 + H2O =>
2 C2O4{2-} + BrO3{-} + 5 H{+} = HOBr + 4 CO2 + 2 H2O
Mn(NO3)2 + NaBiO3 + HNO3 = MnO4 + NaNO3 + Bi(NO3)2 + H2O =>
Mn(NO3)2 + 2 NaBiO3 + 4 HNO3 = MnO4 + 2 NaNO3 + 2 Bi(NO3)2 + 2 H2O
K2MnO4 + O3 = KMnO4 + O2KO =>
K2MnO4 + O3 = KMnO4 + O2KO
KNO3 + (NH4)2SO4 = K2SO4 + NH4(NO3) =>
2 KNO3 + (NH4)2SO4 = K2SO4 + 2 NH4(NO3)
C3H8 + Br2 = C3H6Br2 + H2 =>
C3H8 + Br2 = C3H6Br2 + H2
N + O2* = N2O3 =>
4 N + 3 O2* = 2 N2O3
Fe(s) + O2 = Fe3O4 =>
3 Fe(s) + 2 O2 = Fe3O4
NaBr + NO3Ag = BrAg + NO3Na =>
NaBr + NO3Ag = BrAg + NO3Na
AlCl3 + NH3 + H2O = NH4Al(OH)4 + NH4Cl =>
AlCl3 + 4 NH3 + 4 H2O = NH4Al(OH)4 + 3 NH4Cl
CuO + CH4 = Cu + H2O + CO2 =>
4 CuO + CH4 = 4 Cu + 2 H2O + CO2
K2CO3 + Fe2O3 + H3BO3 = K2Fe2B2O7 + H2O + CO2 =>
K2CO3 + Fe2O3 + 2 H3BO3 = K2Fe2B2O7 + 3 H2O + CO2
A2 = A3 =>
3 A2 = 2 A3
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
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