What does benzene look like?
Benzene is a clear, colourless liquid.
Benzene was originally thought to be cyclohexa-1,3,5-triene.
bonds with two different lengths, corresponding to the alternating single and double bonds.
However, benzene is much more stable than expected, and all of its bonds are the same length.
Chemists now know that the stability comes from the overlap of the p orbitals on each carbon atom to form a cyclic π system containing six delocalized electrons.
bonds have the same length.
Chemists often draw a cyclohexatriene-like formula (a so-called Kekulé formula) when they have to show the electrons explicitly, but they often draw the structure with a circle inside the ring to show the delocalization of electrons.
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Benzene is a colorless liquid with a sweet odor. It is highly flammable and evaporates quickly at room temperature.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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