Physical Science Chapter 20

11 Questions  I  By Julierass311
Sciecen. yes. 

  
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1.  The low energy orbital of the pair of molecular orbitals (MOs) formed when two atomic orbitals combine. 
2.  The point in a chemical reaction in which the forward and reverse reactions are equal. 
3.  The point in a reaction that separates reactants from products on a potential energy surface. 
4.  The high energy orbital of the pair of MOs formed when two atomic orbitals combine. 
5.  The energy that must be put into a system before a reaction can take place. 
6.  The probability waves (orbitals) that describe the possible location for an electron in a molecule are exactly the same as those for an electron in an isolated atom. 
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B.
7.  Electrons in a bonding molecular orbital are most likely to be found between the nuclei in a molecule. 
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8.  A reaction usually goes faster at higher temperatures. 
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9.  A catalyst is a chemical that is present at the beginning of a reaction but not at the end. 
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10.  A very fast reaction has high activation energy. 
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B.
11.  Atomic Chlorine (Cl) is known to be a catalyst for some of the reactions that are responsible for the depletion of Ozone (O3) in the upper atmosphere (also known as the ozone hole). As a catalyst, Cl may...
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