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UkoKoshka [18]
3 years ago
9

Each liter of air has a mass of 1.80 grams. How many liters of air are contained in

Chemistry
1 answer:
g100num [7]3 years ago
3 0

Answer:

25kg

Explanation:

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Question 1: Which of the following statement is false about conjugated systems?
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Answer:

A conjugated system can only contain two alkenes: False

B. A cumulated diene is less stable than an isolated diene.

False

Explanation:

A. A conjugated system is more stable than an unconjugated system.: True

Due to resonance a conjugated system is more stable.

B. The s-trans isomer is favored over the s-cis isomer.: True

Due to repulsion in s-cis isomer they are less stable.

C. A conjugated system has multiple resonance structures. True

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D. A conjugated system can only contain two alkenes: False

A conjugated system may have may alternate double and triple bonds.

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True

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B. A cumulated diene is less stable than an isolated diene.

False

C. Multiple products can always form when treated a conjugated diene with HBr.  True

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D. Conjugated systems arise only between sp2-hybridized atoms.

True

Conjugation allows resonance which is possible in sp2 systems

E. Conjugated double bonds involve unhybridized p-orbitals aligned with each other

True

The double bond is formed as pi bond due to side ways overlapping of unhybridized p orbitals

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