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2 Al + Cr2O3 = Al2O3 + 2 Cr
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
K2SO3 = K2SO4 + K2S =>
4 K2SO3 = 3 K2SO4 + K2S
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
N2 + H = NH3 =>
N2 + 6 H = 2 NH3
NaHCO3 + HCl = NaCl + H2O + CO2 =>
NaHCO3 + HCl = NaCl + H2O + CO2
CuCl2 + NaNO3 = Cu(NO3)2 + NaCl =>
CuCl2 + 2 NaNO3 = Cu(NO3)2 + 2 NaCl
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Fe + Br2 = FeBr3 =>
2 Fe + 3 Br2 = 2 FeBr3
C7H8O + CH3COOH = C6H5CH2OCOCH3 + H2O =>
C7H8O + CH3COOH = C6H5CH2OCOCH3 + H2O
CaCO3 + H2SO4 = CaSO4 + H2O + CO2 =>
CaCO3 + H2SO4 = CaSO4 + H2O + CO2
B + O2 = B2O3 =>
4 B + 3 O2 = 2 B2O3
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
CuSO4 + Na2 = Na2SO4 + Cu2 =>
2 CuSO4 + 2 Na2 = 2 Na2SO4 + Cu2
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
CaSO4 + AlBr3 = CaBr2 + Al2(SO4)3 =>
3 CaSO4 + 2 AlBr3 = 3 CaBr2 + Al2(SO4)3
RbOH + SO2 = Rb2SO3 + H2O =>
2 RbOH + SO2 = Rb2SO3 + H2O
FeCl3 + K4[Fe(CN)6] = Fe4[Fe(CN)6]3 + KCl =>
4 FeCl3 + 3 K4[Fe(CN)6] = Fe4[Fe(CN)6]3 + 12 KCl
RbOH + SO2 = Rb2SO3 + H2O =>
2 RbOH + SO2 = Rb2SO3 + H2O
CH3OH + O2 = H2CO + H2O =>
2 CH3OH + O2 = 2 H2CO + 2 H2O
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
N2 + H = NH3 =>
N2 + 6 H = 2 NH3
Al2O3 + HNO3 = Al(NO3)3 + H2O =>
Al2O3 + 6 HNO3 = 2 Al(NO3)3 + 3 H2O
Pb(NO3)2 + NaCl = PbCl2 + NaNO3 =>
Pb(NO3)2 + 2 NaCl = PbCl2 + 2 NaNO3
Ca3(PO4)2 + H2SO4 = CaSO4 + Ca(H2PO4)2 =>
Ca3(PO4)2 + 2 H2SO4 = 2 CaSO4 + Ca(H2PO4)2
CO2 + S8 = CS2 + SO2 =>
8 CO2 + 3 S8 = 8 CS2 + 8 SO2
Fe + O2 = FeO =>
2 Fe + O2 = 2 FeO
Rb + H2O = RbOH + H2 =>
2 Rb + 2 H2O = 2 RbOH + H2
Al(s) + H2SO4(aq) = Al2(SO4)3(aq) + H2(g) =>
2 Al(s) + 3 H2SO4(aq) = Al2(SO4)3(aq) + 3 H2(g)
NO2 + H2O = HNO3 + NO =>
3 NO2 + H2O = 2 HNO3 + NO
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
K3P + BBr3 = KBr + BP =>
K3P + BBr3 = 3 KBr + BP
Al + CH3COOH = Al(CH3COO)3 + H2 =>
2 Al + 6 CH3COOH = 2 Al(CH3COO)3 + 3 H2
Mg3N2 + H2O = NH3 + Mg(OH)2 =>
Mg3N2 + 6 H2O = 2 NH3 + 3 Mg(OH)2
Cs + N2 = Cs3N =>
6 Cs + N2 = 2 Cs3N
CH4 + F2 = CF4 + HF =>
CH4 + 4 F2 = CF4 + 4 HF
ZnS + O2 = ZnO + SO2 =>
2 ZnS + 3 O2 = 2 ZnO + 2 SO2
NaOH + Cl2 = NaCl + NaClO + H2O =>
2 NaOH + Cl2 = NaCl + NaClO + H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Cl2 + NaOH = NaCl + NaClO3 + H2O =>
3 Cl2 + 6 NaOH = 5 NaCl + NaClO3 + 3 H2O
CS2 + O2 = CO2 + SO2 =>
CS2 + 3 O2 = CO2 + 2 SO2
NO(g) + H2(g) = N2(g) + H2O(g) =>
2 NO(g) + 2 H2(g) = N2(g) + 2 H2O(g)
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
Li + O2 = Li2O =>
4 Li + O2 = 2 Li2O
HNO3 + NaOH = NaNO3 + H2O =>
HNO3 + NaOH = NaNO3 + H2O
CaSO4 + AlBr3 = CaBr2 + Al2(SO4)3 =>
3 CaSO4 + 2 AlBr3 = 3 CaBr2 + Al2(SO4)3
H2SO4 + NaNO2 = HNO2 + Na2SO4 =>
H2SO4 + 2 NaNO2 = 2 HNO2 + Na2SO4
Al2O3 + HNO3 = Al(NO3)3 + H2O =>
Al2O3 + 6 HNO3 = 2 Al(NO3)3 + 3 H2O
NO + Br2 = NOBr =>
2 NO + Br2 = 2 NOBr
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