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anyanavicka [17]
3 years ago
8

Please help me with these?

Chemistry
1 answer:
Julli [10]3 years ago
8 0

Question 5 is the second one.


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irina [24]

the answer is carbon

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3 years ago
Why is it important for someone to hold enzymes in their functional shapes
kumpel [21]

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there are spaces within the enzymes that is active.  That active site allows substrates to join in.  This helps the enzyme carry out the chemical reaction with the substrate.

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3 years ago
Strontium crystallizes in a face-centered cubic unit cell having an edge length of 77.43 pm. What is the atomic radius of stront
kiruha [24]

Answer:

Atomic radius of Strontium is 27.38pm

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In a face-centered cubic structure, the edge, a, could be obtained using pythagoras theorem knowing the hypotenuse of the unit cell, b, is equal to 4r:

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As edge length of Strontium is 77.43pm:

77.43pm / √8 = r

27.38pm = r

<h3>Atomic radius of Strontium is 27.38pm</h3>

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Why do elements that make positive ions occur on the left side of the periodic table while those that make negative ions occur o
Lynna [10]

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Elements in the same group have the same number of valence electrons.

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Wich are the disadvantages of skimming oil spills?
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