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malfutka [58]
3 years ago
15

In any sample of DNA, the amount of adenine (A) equals the amount of _____.

Chemistry
2 answers:
aivan3 [116]3 years ago
8 0
It is equal to amount of thymine
enyata [817]3 years ago
5 0

<u>Answer:</u> The correct answer is thymine.

<u>Explanation:</u>

DNA is known as deoxy ribonucleic acid. This molecule contains 4 nitrogenous bases, which are adenine (A), thymine (T), cytosine (C) and guanine(G). This molecule forms double helix structure.

Adenine formed two hydrogen bonds only with thymine and cytosine forms three hydrogen bonds only with guanine.

Thus, the amount of adenine (A) will be equal to the amount of thymine (T).

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Answer:

1.7 mol/dm3

Explanation:

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6 0
2 years ago
Balanced or Unbalanced<br><br> CH4+4Ci2=CCi4+4HCi
Volgvan

Answer:

balanced

Explanation:

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7 0
3 years ago
Calculate the number of atoms of sodium in a 4.5-gram sample
allochka39001 [22]

Answer:

1.18×10²³ atoms.

Explanation:

From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02×10²³ atoms.

From the above concept, 1 mole of sodium also contains 6.02×10²³ atoms.

1 mole of sodium = 23 g.

Thus,

23 g of sodium contains 6.02×10²³ atoms.

Therefore, 4.5 g of sodium will contain = (4.5 × 6.02×10²³)/23 = 1.18×10²³ atoms.

From the above calculation,

4.5 g of sodium contains 1.18×10²³ atoms.

7 0
3 years ago
What is the final volume?
zaharov [31]

Answer:

Option A. 9.4 L

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 8 L

Initial temperature (T₁) = 293 K

Final temperature (T₂) = 343 K

Final volume (V₂) =?

V₁ / T₁ = V₂ / T₂

8 / 293 = V₂ / 343

Cross multiply

293 × V₂ = 8 × 343

293 × V₂ = 2744

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V₂ = 2744 / 293

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6 0
3 years ago
HELP ASAP
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A. I think sorry if it’s wrong
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