What are 3 methods you can use to separate a mixture? Give an example of each.

Chemistry

1 answer:

max2010maxim [7]3 years ago

6 0

Answer:

The three methods we can use to separate a mixture are:

1.sublimation

example: sand and camphor

2.centrifugation

example:cream from milk

3.evaporation

example:salt from sea water

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Which 2 resonance forms destablize the carbocation intermediate if bezonitrile undergoes chlronation at the ortho or para positi

Anna11 [10]

The question is incomplete, the complete question is shown in the image attached

Answer:

A and B

Explanation:

The electrophilic substitution of arenes yields a cation intermediate. The positive charge of the cation is delocalized over the entire ring.

The -CN group directs incoming electrophiles to the ortho/para position. The resonance structures for the chlorination of benzonitrile are shown in the question.

Recall that -CN is an electron withdrawing group. The resonance forms that destablize the carbocation intermediate are those in which the -CN group is directly attached to the carbon atom bearing the positive charge as in structures A and B.