Transcript Chemistry 100

Lon-Capa
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6th HW assignment due Friday, 11/7, 5 pm.
It is open now.
5th Quiz due Sunday, 11/16 by 10 pm. It will
open Friday, 11/14 at 5 pm.
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Some “Big” Questions
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Why do some ions have specific charges
in ionic compounds?
Why are some substances solids, some
liquids, and some gases at the same
conditions of temperature and pressure?
Why do some substances mix? Why
don’t all of them?
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The Answer to Life, the
Universe, and Everything…
Second Law of
Thermodynamics:
Increase in
Entropy
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Overall goal:
Atomic Structure
Chemical Bonding
3D Molecular Structure
Molecular Properties
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Clicker Question
Consider different “sodium particles”
(atom or ions) in separate evacuated
containers. Which of the following
sodium species is lowest in energy?
a)
b)
c)
d)
e)
Na
Na+
Na2+
Na
Na2
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Clicker Question
Consider different “oxygen particles” (atom or
ions) in separate evacuated containers.
Which of the following oxygen species is
lowest in energy?
a)
b)
c)
d)
e)
O
O+
O2+
O
O2
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Clicker Question
Consider different “oxygen particles” (atom or
ions) in separate evacuated containers.
Which of the following oxygen species is
second lowest in energy?
a)
b)
c)
d)
e)
O
O+
O2+
O
O2
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Arranged by Reactivity
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