displacement reaction............
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combination
Al2O3 + 6HBr = 2Albr3 + 3H2O
This is an double-displacement reaction, in this case and acid-base reaction.
A combustion reaction.
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Fe2O3 + 2Al ===> Al2O3 + 2FeIn this reaction the number of moles of Al2O3 produced is dependent on the number of moles of Fe2O3 and Al that one starts with. For every 1 mole Fe2O3 and 2 moles Al, one gets 1 moles of Al2O3.
Fe2O3 + 2Al --> Al2O3 +2 Fe The reaction is commonly known as thermite for the enormous amount of heat produced. The iron produced by the reaction is molten.
Carbon
The balanced equation for this reaction is Fe2O3 + 3 H2O = 2 Fe(OH)3.
combination
The equation FeSO4 = Fe2O3 + SO2 + SO3 is not balanced. To balance it, one possible balanced equation could be: 2FeSO4 = Fe2O3 + 2SO2 + 2SO3.
The balanced chemical equation for the reaction FeS2 + 7/2 O2 → Fe2O3 + 4 SO2 is: 4 FeS2 + 11 O2 → 2 Fe2O3 + 8 SO2.
The reaction is:4 Fe + 3 O2= 2 Fe2O3
Al2O3 + 6HBr = 2Albr3 + 3H2O
This equation is Al2O3 + 6 HCl = 2 AlCl3 + 3 H2O.
The balanced equation for FeS2 + H2O + O2 -> Fe2O3 + H2SO4 is: 4FeS2 + 14H2O + 17O2 -> 8Fe2O3 + 8H2SO4. This balanced equation ensures that the number of each type of atom is the same on both sides of the equation.