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3 years ago

Classify the following dienes and polyenes as isolated, conjugated, cumulated, or some combination of these classifications.

Chemistry

1 answer:

lawyer [7]3 years ago

8 0

Answer:

cycloocta-1,4-diene- isolated double bond

cycloocta-1,3-diene- conjugated double bond

cyclodeca-1,2-diene- cumulated double bond

cycloocta-1,3,5,7-tetraene- conjugated double bond

cyclohexa-1,3,5-triene (benzene) - conjugated double bond

penta-1,2,4-triene- cumulated and conjugated double bond

Explanation:

A conjugated double bond is a system that contains alternate double and single bonds. It is renowned for its unusual stability.

A cumulated double bond is a double bond system involving about three atoms e.g C=C=C.

An isolated double bond is a system of double bonds separated by more than one single bond.

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In the bromination reaction of trans-cinnamic acid, a student started with 300 mg oftrans-cinnamic acid and excess bromine. T

jonny [76]

Answer:

The percentage yield is= 80%

Explanation:

% yield= actual yield/theoretical yield ×100

From The question

Actual yield= 240mg

Theoretical yield= 300mg

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3 years ago

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Explanation:

Density of the vinegar is higher than the density of the oil. The consequence of this is that the oil will be the top layer in the pitcher while the vinegar is at the bottom layer in the pitcher.

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3 years ago

What is a cation and where can you find it on the periodic table?

Maslowich

Answer:

A cation is an ion with fewer electrons than protons. Therefore, it has a positive charge. The electric charge on a proton is equal in amount to the charge on an electron. Anions are atoms or radicals (groups of atoms), that have gained electrons. Since they now have more electrons than protons, anions have a negative charge. Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon, sulfur).

Explanation:

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2 years ago

Uranium-238 decays very slowly.its half-life is 4.47 billion years.

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