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2 Al + 3 CuCl2 = 2 AlCl3 + 3 Cu
Mg + N2 = Mg3N2 =>
3 Mg + N2 = Mg3N2
H2C2O4(aq) + Ca(OH)2(s) = CaOH(s) + H2O(l) + CO2(g) =>
H2C2O4(aq) + 2 Ca(OH)2(s) = 2 CaOH(s) + 2 H2O(l) + 2 CO2(g)
Hg(OH)2 + H3PO4 = Hg3(PO4)2 + H2O =>
3 Hg(OH)2 + 2 H3PO4 = Hg3(PO4)2 + 6 H2O
HCl + Ni = NiCl2 + H2 =>
2 HCl + Ni = NiCl2 + H2
Fe2O3 + C = CO + Fe =>
Fe2O3 + 3 C = 3 CO + 2 Fe
H2O + Na2O = NaOH =>
H2O + Na2O = 2 NaOH
SiO2 + HF = SiF4 + H2O =>
SiO2 + 4 HF = SiF4 + 2 H2O
Na2HPO4 + (NH4)2MoO4 + HNO3 = (NH4)3PMo12O40 + NaNO3 + H2O + NH4NO3 =>
Na2HPO4 + 12(NH4)2MoO4 + 23 HNO3 = (NH4)3PMo12O40 + 2 NaNO3 + 12 H2O + 21 NH4NO3
PbO2(s) = Pb3O4(s) + O2(g) =>
3 PbO2(s) = Pb3O4(s) + O2(g)
FeS + O2 = Fe2O3 + SO2 =>
4 FeS + 7 O2 = 2 Fe2O3 + 4 SO2
H2C2O4 + KMnO4 + H2SO4 = CO2 + MnSO4 + KHSO4 + H2O =>
5 H2C2O4 + 2 KMnO4 + 4 H2SO4 = 10 CO2 + 2 MnSO4 + 2 KHSO4 + 8 H2O
Mn + O = MnO =>
Mn + O = MnO
BaCl2 + K2SO4 = BaSO4 + KCl =>
BaCl2 + K2SO4 = BaSO4 + 2 KCl
PbO2(s) = Pb3O4(s) + O2(g) =>
3 PbO2(s) = Pb3O4(s) + O2(g)
Mn + O2 = MnO =>
2 Mn + O2 = 2 MnO
Ca + HNO3 = Ca(NO3)2 + H2 =>
Ca + 2 HNO3 = Ca(NO3)2 + H2
NO2 + H2O = H2N2O5 =>
2 NO2 + H2O = H2N2O5
Si + S8 = Si2S4 =>
4 Si + S8 = 2 Si2S4
Al(s) + O2(g) = Al2O3(s) =>
4 Al(s) + 3 O2(g) = 2 Al2O3(s)
Ba(HCO3)2 = BaCO3 + H2O + CO2 =>
Ba(HCO3)2 = BaCO3 + H2O + CO2
O2 = O3 =>
3 O2 = 2 O3
BaCl2 + Al2(SO4)3 = BaSO4 + AlCl3 =>
3 BaCl2 + Al2(SO4)3 = 3 BaSO4 + 2 AlCl3
Tl2(SO4)3 + SO2 + H2O = Tl2SO4 + H2SO4 =>
Tl2(SO4)3 + 2 SO2 + 4 H2O = Tl2SO4 + 4 H2SO4
SiC + Cl2 = SiCl4 + C =>
SiC + 2 Cl2 = SiCl4 + C
C2H5OH(l) + K2CrO7(aq) + H2SO4(aq) = CH3COOH(aq) + Cr2(SO4)3(aq) + K2SO4(aq) + H2O(l) =>
9 C2H5OH(l) + 4 K2CrO7(aq) + 10 H2SO4(aq) = 9 CH3COOH(aq) + 2 Cr2(SO4)3(aq) + 4 K2SO4(aq) + 19 H2O(l)
H2C2O4 + KMnO4 + H2SO4 = CO2 + MnSO4 + KHSO4 + H2O =>
5 H2C2O4 + 2 KMnO4 + 4 H2SO4 = 10 CO2 + 2 MnSO4 + 2 KHSO4 + 8 H2O
NH4VO3 = V2O5 + NH3 + H2O =>
2 NH4VO3 = V2O5 + 2 NH3 + H2O
BaCl2 + Na2SO4 = NaCl + BaSO4 =>
BaCl2 + Na2SO4 = 2 NaCl + BaSO4
NaOH + Cl2 = NaCl + NaClO + H2O =>
2 NaOH + Cl2 = NaCl + NaClO + H2O
NiS + O2 = NiO + SO2 =>
2 NiS + 3 O2 = 2 NiO + 2 SO2
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
Al2(CO3)3 = Al2O3 + CO2 =>
Al2(CO3)3 = Al2O3 + 3 CO2
H3PO4 + HCl = PCl5 + H2O =>
H3PO4 + 5 HCl = PCl5 + 4 H2O
PbO + NH3 = Pb + H2O + N2 =>
3 PbO + 2 NH3 = 3 Pb + 3 H2O + N2
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
H + I = HI =>
H + I = HI
Mg + H2SO4 = MgSO4 + H2 =>
Mg + H2SO4 = MgSO4 + H2
H + I = HI =>
H + I = HI
HBr + NaOH = NaBr + H2O =>
HBr + NaOH = NaBr + H2O
AgNo3 + Na2C2O4 = Ag2C2O4 + NaNo3 =>
2 AgNo3 + Na2C2O4 = Ag2C2O4 + 2 NaNo3
HBr + NaOH = NaBr + H2O =>
HBr + NaOH = NaBr + H2O
I2 + HNO3 = HIO3 + NO2 + H2 =>
I2 + 6 HNO3 = 2 HIO3 + 6 NO2 + 2 H2
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
HClO4 + P4O10 = H3PO4 + Cl2O7 =>
12 HClO4 + P4O10 = 4 H3PO4 + 6 Cl2O7
H2 + I2 = HI =>
H2 + I2 = 2 HI
Hg2CrO4 = Cr2O3 + Hg + O2 =>
4 Hg2CrO4 = 2 Cr2O3 + 8 Hg + 5 O2
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
Na2CO3 + HCl = NaCl + CO2 + H2O =>
Na2CO3 + 2 HCl = 2 NaCl + CO2 + H2O
calciumhydroxide + carbondioxide = Ca(CO3) + H2O =>
Ca(OH)2 + CO2 = Ca(CO3) + H2O
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