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Arada [10]
3 years ago
6

Circle any conjugated portions in the molecules shown in(a - e). If no conjugation exists, write "no conjugation".

Chemistry
1 answer:
hodyreva [135]3 years ago
8 0

Answer: find the circled option in the attachment below. Only option a is " no conjugation"

Explanation: Conjugation is possible by means of alternating single and double bonds in which each atom supplies a p orbital perpendicular to the plane of the molecule. Therefore triple bonds doesn't show conjugation.

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Answer:

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Explanation:

The energy you need to to raise the temperature of 1000 kg of water from 25.0 to 100.0 °C is:

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Where: q is heat, C is specific heat of water (4,184J/g°C), m is mass in grams (1000x10³g), and ΔT is 100,0°C - 25,0°C = 75,0°C

Replacing:

q = 4,184J/g°C×1000x10³g×75,0°C

<u><em>q = 3,14x10⁸ J of heat are required</em></u>

<u><em /></u>

Now, if the heating value of dry wood is 16,72 MJ/kg = 16,72x10⁶ J/kg, mass of wood required is:

3,14x10⁸J × (1kg / 16,72x10⁶ J) = <em>18,8 kg of wood are required</em>

<em></em>

I hope it helps!

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3 years ago
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Answer:

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Sliva [168]
The correct answer is A
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