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Element "x" exists in three different solid forms (A,b and c). Forms a is a brittle solid. If a chuck of it hits with a hammer it will shatter into little pieces of different sizes. Form b when hit by

Element "x" exists in three different solid forms (A,b and c). Forms a is a brittle solid. If a chuck of it hits with a hammer it will shatter into little pieces of different sizes. Form b when hit by a hammer will not shatter but will split into two even pieces along a line perpendicular to the direction it was hit. Form c can be made from form b under extremely high pressure and temperature followed by decreasing both the temperature and pressure to normal levels. Form c cannot be cracked by a hammer. Assume delta G is zero for form a.

A) From most negative to most positive , order the three forms according to "S". Why?

B) From most negative to most positive , order the three forms according to Gibbs Free Energy, Why?

C) The three forms exist in the following hybridization states; unhydridized, sp2, and sp3. Match with forms a, b, and c. Explain your choices.

D) Which form will be hardest to start burning oxygen? Why?

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