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CaCO3 = CaO + CO2
S + NaOH = S(OH)2 + Na =>
S + 2 NaOH = S(OH)2 + 2 Na
H2SO4 + Na = NaSO4 + S + H2O =>
4 H2SO4 + 3 Na = 3 NaSO4 + S + 4 H2O
AgNO3(aq) + K2CO3(aq) = AgCO3(s) + K2NO3(aq) =>
AgNO3(aq) + K2CO3(aq) = AgCO3(s) + K2NO3(aq)
H2CO3 + Sn(OH)4 = Sn2(CO3)4 + H2O =>
4 H2CO3 + 2 Sn(OH)4 = Sn2(CO3)4 + 8 H2O
HMnO4 + K2O = K(MnO4) + H2O =>
2 HMnO4 + K2O = 2 K(MnO4) + H2O
Li + CoCl = LiCl + Co =>
Li + CoCl = LiCl + Co
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
V + HCl = VCl4 + H2 =>
V + 4 HCl = VCl4 + 2 H2
LiOH + Na2Cr2O7 = NaOH + Li2Cr2O7 =>
2 LiOH + Na2Cr2O7 = 2 NaOH + Li2Cr2O7
NaBH4 = NaB + H2 =>
NaBH4 = NaB + 2 H2
O2(i) = O3(g) =>
3 O2(i) = 2 O3(g)
NaOH + CuSO4 = Na2SO4 + Cu(OH)2 =>
2 NaOH + CuSO4 = Na2SO4 + Cu(OH)2
SO2 + H2O = H2SO3 =>
SO2 + H2O = H2SO3
Lu2O3 + HCl = LuCl3 + H2O =>
Lu2O3 + 6 HCl = 2 LuCl3 + 3 H2O
HI + NH4 = NH4I + H =>
HI + NH4 = NH4I + H
KOH + C = K + H2 + K2CO3 =>
6 KOH + 2 C = 2 K + 3 H2 + 2 K2CO3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
CS2(l) + O2(g) = CO2 + SO2(g) =>
CS2(l) + 3 O2(g) = CO2 + 2 SO2(g)
F + Pb4I = Pb4F + I =>
F + Pb4I = Pb4F + I
UO2F2 + NH4OH = (NH4)2U2O7 + NH4F + H2O =>
2 UO2F2 + 6 NH4OH = (NH4)2U2O7 + 4 NH4F + 3 H2O
N3 + H2 = NH3 =>
2 N3 + 9 H2 = 6 NH3
Cu + AgNO3 = Cu(NO3)2 + Ag =>
Cu + 2 AgNO3 = Cu(NO3)2 + 2 Ag
U + Te = U2Te3 =>
2 U + 3 Te = U2Te3
BaSO4 = Ba + SO4 =>
BaSO4 = Ba + SO4
SO3 + C = SO2 + CO =>
SO3 + C = SO2 + CO
NO + O2 = NO2 =>
2 NO + O2 = 2 NO2
SO2 + H2O = H2OSO2 =>
SO2 + H2O = H2OSO2
Mg + Cu2 = MgCu2 =>
Mg + Cu2 = MgCu2
Fe2(SO4)3 + Mg = Mg(SO4) + Fe =>
Fe2(SO4)3 + 3 Mg = 3 Mg(SO4) + 2 Fe
C5H12(s) + O2(g) = CO2 + H2O =>
C5H12(s) + 8 O2(g) = 5 CO2 + 6 H2O
Sr(OH)2 + FeCl3 = SrCl2 + Fe(OH)3 =>
3 Sr(OH)2 + 2 FeCl3 = 3 SrCl2 + 2 Fe(OH)3
K2CrO4 = K + Cr + O =>
K2CrO4 = 2 K + Cr + 4 O
Fe2(SO4)3 + Mg = Mg(SO4) + Fe =>
Fe2(SO4)3 + 3 Mg = 3 Mg(SO4) + 2 Fe
CrBr2(aq) + Na2CO3(aq) = CrCO3 + NaBr =>
CrBr2(aq) + Na2CO3(aq) = CrCO3 + 2 NaBr
Cu(NO3)2 + NaNo3 = Cu(No3)2 + NaNO3 =>
Cu(NO3)2 + 2 NaNo3 = Cu(No3)2 + 2 NaNO3
F2 + Mg = MgF2 =>
F2 + Mg = MgF2
HNO3 + K = KNO3 + NH4NO + H2O =>
14 HNO3 + 12 K = 12 KNO3 + NH4NO + 5 H2O
PbS2 = Pb + S8 =>
4 PbS2 = 4 Pb + S8
TeO2 + H2O = H2TeO3 =>
TeO2 + H2O = H2TeO3
CuS + O = CuO + SO2 =>
CuS + 3 O = CuO + SO2
H2O(l) + N2O3 = HNO2(aq) =>
H2O(l) + N2O3 = 2 HNO2(aq)
B2H6 = B4H10 + H2 =>
2 B2H6 = B4H10 + H2
Li(OH) + Na2(CrO4) = Li2(CrO4) + Na(OH) =>
2 Li(OH) + Na2(CrO4) = Li2(CrO4) + 2 Na(OH)
S03 + O2 = SO3 =>
2 S03 + 9 O2 = 6 SO3
Ni + V = Ni88V12 =>
88 Ni + 12 V = Ni88V12
KI(s) = K(s) + I(s) =>
KI(s) = K(s) + I(s)
C6H7O7 + H2O = C6H6O7 + H3O =>
C6H7O7 + H2O = C6H6O7 + H3O
Na2CO3 + H2SO3 = Na2SO3 + CO2 + H2O =>
Na2CO3 + H2SO3 = Na2SO3 + CO2 + H2O
HIO4 = H2O + I2O5 + O2 =>
2 HIO4 = H2O + I2O5 + O2
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