Chemistry

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Over the years, the thermite reaction (mixing of solid iron (III) oxide with aluminum metal) has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors.

A. Write a balanced equation representing the reaction.

B. What masses of iron (III) oxide and aluminum must be used to produce 15.0 g if iron?

C. What is the maximum mass of aluminum oxide that could be produced.

  • Chemistry -

    Fe2O3 + 2Al ==> Al2O3 + 2Fe

    B.
    a. mols Fe in 15.0g Fe = grams/molar mass
    b. Using the coefficients in the balanced equation, convert mols Fe to mols Fe2O3.
    c. Convert mols Fe2O3 to g. g = mols x molar mass

    For Al, use the same procedure but in b convert mols Fe to mols Al and go from therre.

    C.
    Same procedure. Convert mols Fe to mols Al2O3 then convert to grams Al2O3.

  • Chemistry -

    Complete and balance this reaction to form vanadium (V) oxide
    V(s) + O2(g) 

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