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solniwko [45]
3 years ago
14

Plsss helpppp im confused i dont know the answer pls

Chemistry
2 answers:
Mkey [24]3 years ago
8 0
<h3>GREETINGS!</h3><h2>_____________________________________</h2><h2><u>Answer</u>:</h2>

N and C

<h2>_____________________________________</h2><h3><u>WHY OPTION A?</u></h3>

Because Lithium and Sodium belong to group 1A whereas Magnesium is from group 2A, which are S block elements and they form ionic bond.

<h2>_____________________________________</h2><h3 /><h3>HOPE IT HELPS!</h3>
Alex_Xolod [135]3 years ago
4 0

Answer:

N and C

Explanation:

Os the right answer

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it will be shriviled due to the process called osmosis

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When this element was discovered, it exhibited luster and malleability, and it reacted very vigorously with water. This element
rjkz [21]
The answer is potassium
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Answer:

1-A

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3 years ago
The ionization constant of lactic acid ch3ch(oh) co2h am acid found in the blood after strenuous exercise is 1.36×10^-4 If 20.0g
lana66690 [7]

Answer:

Explanation:

CH₃CHOHCOOH    ⇄    CH₃CHOHCOO⁻   +    H⁺

ionisation constant = 1.36 x 10⁻⁴ .

molecular weight of lactic acid = 90 g

moles of acid used = 20 / 90

= .2222

it is dissolved in one litre so molar concentration of lactic acid formed

C = .2222M

Let n be the fraction of moles ionised  

CH₃CHOHCOOH    ⇄    CH₃CHOHCOO⁻   +    H⁺

C  - nC                                          nC                  nC

By definition of ionisation constant Ka

Ka = nC x nC / C - nC

= n²C ( neglecting n in the denominator )

n² x .2222 = 1.36 x 10⁻⁴

n = 2.47  x 10⁻²

nC = 2.47  x 10⁻² x .2222

= 5.5 x 10⁻³

So concentration of hydrogen or hydronium ion = 5.5  x 10⁻³ g ion per litre .

6 0
2 years ago
Why does fluorine have the highest electronegativity
grandymaker [24]

Answer:

- Fluorine has 5 Electrons in its 2P shell

- Fluorine is so close to ideal Electron Configuration, the Electrons are held very tightly to the Nucleus.

Explanation:

Hopefully this was helpful!

4 0
2 years ago
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