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3 years ago

Which element exhibits a crystalline structure at STP? 1)F 2)CI 3)Br 4) I

Chemistry

1 answer:

umka21 [38]3 years ago

6 0

It would be F only because I wouldn’t make sense CI doesn’t exhibit crystalline neither does BR so F

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Select the correct choice there's only one answer.

KATRIN_1 [288]

Answer:

<h2>Option C is the correct option.</h2>

The Valence electrons in S

Explanation:

Sulphur has highest effective nuclear charge as in a period there is increase in effective nuclear charge from left to right.Sulphur is in the end in a period leaving Mg and Al in left side.

Hope this helps....

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2 years ago

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What happens when the kinetic energy of molecules increases so much that electrons are released by the atoms, creating a swirlin

aleksandrvk [35]

Answer:

b) matter changes to plasma state.

Explanation:

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3 years ago

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Arte-miy333 [17]

The acid and the salt are the answers

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3 years ago

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Maslowich

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3 years ago

Use the Henderson-Hasselbalch equation and your knowledge of ionization to help you answer this question. Aspirin is a weak acid

Leya [2.2K]

Answer:

The protonated form is predominant when aspirin is absorbed more readily. The ratio of conjugate base to acid is 1 to 100.

Explanation:

Aspirin is more readily absorbed when it is protonated, that is when pH is lower than pKa (more H⁺ available in the medium). We can confirm this using Henderson-Hasselbalch equation for pH = 1.5:

$pH = pKa +log(\frac{conjugate base}{weak acid} )\\1.5=3.5 +log(\frac{conjugate base}{weak acid} )\\-2.0=log(\frac{conjugate base}{weak acid} )\\10^{-2.0} =\frac{conjugate base}{weak acid}\\\frac{conjugate base}{weak acid}=0.01=\frac{1}{100}$

When aspirin is absorbed more readily the ratio of conjugate base to acid is 1 to 100, being the acid the predominant form.

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3 years ago