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AVprozaik [17]
2 years ago
10

I have a question can someone answer these questions for me please?

Chemistry
1 answer:
Kitty [74]2 years ago
8 0
1. C
2. E
3. A
4. B
5. D
I hope that helps <3
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A celestial body is any natural (i.
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THE ANSWER IS I.ASTEROIDS   II.COMETS   III. METEOROIDS   IV. PLANETS PLZ MARK BRAINLISEST HOPE I HELPED THX

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3 years ago
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Which of the following reactions does the coenzyme biotin catalyze?
Papessa [141]

Answer:

c. decarboxylation of an a-keto acid.

Explanation:

Decarboxylation refers to the removal of the carboxyl group from a carboxylic acid and thus releasing carbon dioxide. Decarboxylases are enzymes that speed up the removal of the carboxyl group from acids. These reactants could be amino acids, alpha-keto acids, and beta-keto acids. Biotin is known to catalyze the decarboxylation of malonyl CoA to acetyl CoA during fatty acid synthesis.

Malonyl CoA is converted to acetyl CoA after decarboxylation assisted by biotin also known as Vitamin H. Alpha keto acids are involved in fatty acids synthesis and Malonyl CoA is an alpha-keto acid because the keto group is located in the first carbon near the carboxylic acid group. Keto acids have both a carboxyl group and a ketone group.

5 0
3 years ago
In Europe, gasoline efficiency is measured in km/L. If your car’s gas mileage is 25.0 mi/gal, how many liters of gasoline would
Deffense [45]

Answer:

V=23.5L

Explanation:

Hello,

In this case, it is convenient to compute the car's mileage in km/L as follows:

25.0\frac{mi}{gal}*\frac{1km}{0.6214mi}*\frac{1gal}{3.78L}=10.64\frac{km}{L}

In such a way, since the distance is measured to be 250 km, the volume requirement is:

V=\frac{250km}{10.64kg/L}\\ \\V=23.5L

Regards.

7 0
3 years ago
Which stament about energy is mostly correct
klasskru [66]
I would say C is the most correct. 
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If you're using underwater "windmills" placed in the ocean, then you would expect it to last a while as the ocean will not disappear in the near future. 
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3 years ago
What is "change" when we are talking about natural and physical systems?
zlopas [31]

D: is the anwser that your looking for

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3 years ago
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