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Home / Assignment Help / Label the following as either a chemical or a physical change. Melting butter _______________ Chopping a green pepper ______________ Cooking a Steak ______________ Boiling Eggs ______________ Mixing Trail Mix in a bowl ______________ Baking Asparagus at 375° F ______________

# Label the following as either a chemical or a physical change. Melting butter _______________ Chopping a green pepper ______________ Cooking a Steak ______________ Boiling Eggs ______________ Mixing Trail Mix in a bowl ______________ Baking Asparagus at 375° F ______________

The balanced chemical reaction is as shown below,

N₂ + 3H₂  –> 2NH₃

The equation shows that every 3 moles of hydrogen, H2, there would be 2 moles of ammonia, NH3, that is going to be formed. Using this concept, we solve for the unknown in this item.

Since we are restricted only of the number of hydrogen, it becomes our limiting reactant.

(6 moles H2) x (2 moles NH3/3 moles H2) = 4 moles NH3

Therefore, given enough amount of N2, the amount of NH3 that can be formed out of the 6 moles of H2 is equal to 4 moles.