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(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
Cl2 + KBr = KCl + Br2 =>
Cl2 + 2 KBr = 2 KCl + Br2
(Fe)2((SO)4)3 + KOH = (K)2(SO)4 + Fe(OH)3 =>
(Fe)2((SO)4)3 + 6 KOH = 3(K)2(SO)4 + 2 Fe(OH)3
(NH4)2SO4 + BaI2 = BaSO4 + INH4 =>
(NH4)2SO4 + BaI2 = BaSO4 + 2 INH4
SCN{-} + I2 + OH{-} = CN{-} + SO4{2-} + I{-} + H2O =>
SCN{-} + 3 I2 + 8 OH{-} = CN{-} + SO4{2-} + 6 I{-} + 4 H2O
C18H35O3 + O2 = CO2 + H2O =>
4 C18H35O3 + 101 O2 = 72 CO2 + 70 H2O
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
C5H6 + O2 = CO2 + H2O =>
2 C5H6 + 13 O2 = 10 CO2 + 6 H2O
Cu + SO4 = Cu(ii)SO4 =>
Cu + SO4 = Cu(ii)SO4
Cu + AgNO3 = Cu(NO3)2 + Ag =>
Cu + 2 AgNO3 = Cu(NO3)2 + 2 Ag
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
Al + C = Al4C3 =>
4 Al + 3 C = Al4C3
NH3 + HCl = NH4Cl =>
NH3 + HCl = NH4Cl
H2O = H2 + O2 =>
2 H2O = 2 H2 + O2
C2H4O + O2 = CO2 + H2O =>
2 C2H4O + 5 O2 = 4 CO2 + 4 H2O
W + NH3 = W(NH2)6 + H2 =>
W + 6 NH3 = W(NH2)6 + 3 H2
Fe + O2 = Fe3O4 =>
3 Fe + 2 O2 = Fe3O4
Br2 + KI = KBr + I2 =>
Br2 + 2 KI = 2 KBr + I2
P + H2(g) = PH3(g) =>
2 P + 3 H2(g) = 2 PH3(g)
AlCl3 + HOH = H2 + Cl2 + Al(OH)3 =>
2 AlCl3 + 6 HOH = 3 H2 + 3 Cl2 + 2 Al(OH)3
Na3C3H5O7 + HCl = H3C3H5O7 + NaCl =>
Na3C3H5O7 + 3 HCl = H3C3H5O7 + 3 NaCl
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
K2Cr2O7 + Na2C2O4 + H2SO4 = K2SO4 + Cr2(SO4)3 + Na2SO4 + H2O + CO2 =>
K2Cr2O7 + 3 Na2C2O4 + 7 H2SO4 = K2SO4 + Cr2(SO4)3 + 3 Na2SO4 + 7 H2O + 6 CO2
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
Sr + Ba(NO3)2 = Sr(NO3)2 + Ba =>
Sr + Ba(NO3)2 = Sr(NO3)2 + Ba
Al(C2H3O2)3 + NaOH = Al(OH)3 + NaC2H3O2 =>
Al(C2H3O2)3 + 3 NaOH = Al(OH)3 + 3 NaC2H3O2
Bi(NO3)3 + NaOH = BiONO3 + NaNO3 + H2O =>
Bi(NO3)3 + 2 NaOH = BiONO3 + 2 NaNO3 + H2O
Fe(NO3)3 + H2 = Fe + H2O + NO2 =>
Fe(NO3)3 + 3 H2 = Fe + 3 H2O + 3 NO2
NaCl + F2 = NaF + Cl2 =>
2 NaCl + F2 = 2 NaF + Cl2
K2CO3 + C6H12O7 = C6H11O7K + CO2 + H2O =>
K2CO3 + 2 C6H12O7 = 2 C6H11O7K + CO2 + H2O
Al2O3(k) + C(k) = Al(k) + CO2(d) =>
2 Al2O3(k) + 3 C(k) = 4 Al(k) + 3 CO2(d)
Al{3+} + HBr = AlBr{3} + H2 =>
2 Al{3+} + 2 HBr = 2 AlBr{3} + H2
Pb(NO3)2(aq) + MgSO4(aq) = PbSO4 + Mg(NO3)2() =>
Pb(NO3)2(aq) + MgSO4(aq) = PbSO4 + Mg(NO3)2()
K(C2H3O2) + Na2SO4 = Na(C2H3O2) + K2SO4 =>
2 K(C2H3O2) + Na2SO4 = 2 Na(C2H3O2) + K2SO4
Hg2CO3(s) + HNO3(aq) = Hg(NO3)2(aq) + H2O(l) + CO2(g) + NO2(g) =>
Hg2CO3(s) + 6 HNO3(aq) = 2 Hg(NO3)2(aq) + 3 H2O(l) + CO2(g) + 2 NO2(g)
K2Cr2O7(aq) + HCl(aq) = KCl(aq) + CrCl3(aq) + H2O(l) + Cl2(g) =>
K2Cr2O7(aq) + 14 HCl(aq) = 2 KCl(aq) + 2 CrCl3(aq) + 7 H2O(l) + 3 Cl2(g)
Cu(s) + HNO3(l) = Cu(NO3)2(l) + NO2(g) + H2O(g) =>
Cu(s) + 4 HNO3(l) = Cu(NO3)2(l) + 2 NO2(g) + 2 H2O(g)
MgO + HCl = MgCl2 + H2O =>
MgO + 2 HCl = MgCl2 + H2O
H2SeO3 + Zn(OH)2 = Zn2(SeO3)2 + H2O =>
2 H2SeO3 + 2 Zn(OH)2 = Zn2(SeO3)2 + 4 H2O
C2H4O + O2 = CO2 + H2O =>
2 C2H4O + 5 O2 = 4 CO2 + 4 H2O
Cu(s) + HCl(aq) = CuCl2(aq) + H2(g) =>
Cu(s) + 2 HCl(aq) = CuCl2(aq) + H2(g)
Na3PO4 + H2O = Na3(OH)3 + H3PO4 =>
Na3PO4 + 3 H2O = Na3(OH)3 + H3PO4
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
C6H15O6N + O2 = CO2 + H2O + NH3 =>
C6H15O6N + 6 O2 = 6 CO2 + 6 H2O + NH3
Li + O2 = Li2O =>
4 Li + O2 = 2 Li2O
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
P + HCl = P2Cl2 + H2 =>
2 P + 2 HCl = P2Cl2 + H2
CH3NH3Br + BiBr3 = (CH3NH3)3Bi2Br9 =>
3 CH3NH3Br + 2 BiBr3 = (CH3NH3)3Bi2Br9
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