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Shalnov [3]
3 years ago
5

Help please

Chemistry
1 answer:
gogolik [260]3 years ago
4 0

Answer:

16 km/2 sec=8km/sec

Explanation:

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Which structure below contains all of the others?<br> DNA<br> gene<br> chromosome<br> nucleus
kodGreya [7K]

Answer:

nucleus

Explanation:

The nucleus holds all the other things, keeping them safe and confined.

4 0
3 years ago
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1s 2s²2p3s²3p648²30104p5<br> Which element is this?
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3 years ago
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For the reaction, Cl2 + 2KBr --&gt; 2KCl + Br2, how many moles of potassium chloride, KCl, are produced from 102g of potassium b
Sedaia [141]

Solution :

From the balanced chemical equation, we can say that 1 moles of KBr will produce 1 moles of KCl .

Moles of KBr in 102 g of potassium bromide.

n = 102/119.002

n = 0.86 mole.

So, number of miles of KCl produced are also 0.86 mole.

Mass of KCl produced :

m = 0.86 \times Molar \  mass \ of \  KCl\\\\m = 0.86 \times 74.5 \ gram \\\\m = 64.07\  gram

Hence, this is the required solution.

5 0
3 years ago
How many asymmetric centers are present in the open chain form of the aldohexose d-(-)-gulose?
a_sh-v [17]
Answer:
             FOUR <span>asymmetric centers are present in the open chain form of the Aldohexose d-(-)-Gulose.

Explanation:
                   Here the word Asymmetric center means those carbon atoms which contains atoms or group of atoms different from each other. All the four atoms or group of atoms attached to carbon atom are different and have different molecular masses. Such carbon atoms are also called as Chiral carbons. The structure of </span>d-(-)-Gulose is drawn below, and all Four Asymmetric centers are pointed by " * "

5 0
3 years ago
Where does transcription occur and why does it occur there
butalik [34]

Answer:

Transcription takes place in the nucleus

Explanation:

it uses dna as a template to make an rna molecule. rna then leaves the nucleus and goes to ribosome in the cytoplasm, where translation occurs translation reads the genetic code in mrna and makes a protein.

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3 years ago
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