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3 years ago

Ionic crystals are typically brittle because distortion of the crystal lattice produces:-

Chemistry

1 answer:

Bess [88]3 years ago

5 0

Answer:

b I my current pls let me known

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Construct a multistep synthetic route from ethylbenzene to (2-bromoethyl)benzene by dragging the appropriate items into the bins

S_A_V [24]

Answer:

(1)NBS, ROOR (2) $KOC(CH_{3})_{3}$ and (3)HBr, ROOR

Explanation:

Conversion of ethylbenzene to (2-bromoethyl)benzene involves three steps.

First step: allylic bromination of ethylbenzene in presence of NBS, ROOR. This step produces (1-bromoethyl)benzene.

Second step: E2 ellimination of HBr from (1-bromoethyl)benzene in presence of a strong base e.g. potassium t-butoxide [ $KOC(CH_{3})_{3}$ ]. This step produces styrene

Third step: HBr addition to double bond in presence of HBr, ROOR (antimarkonikov addition of HBr). Thus step produces (2-bromoethyl)benzene.

Full reaction scheme has been shown below.

5 0

4 years ago

What is the most likely formula for an oxide formed between group a 1 atom x and oxygen

Marizza181 [45]

The most likely formula for an oxide formed between group 1a atom X and oxygen would be

X2O. - X is group 1a atom.

5 0

4 years ago

I was born in ……… west. complete this sentense with article

Xelga [282]

Answer:

Article is

I was born in the  west .

4 0

3 years ago

A human lung at maximum capacity has a volume of 3.0 liters. If the partial pressure of oxygen in the air is 21.1 kilopascals an

MrRa [10]

Answer : 0.026 moles of oxygen are in the lung

Explanation :

We can solve the given question using ideal gas law.

The equation is given below.

$PV = nRT$

We have been given P = 21.1 kPa

Let us convert pressure from kPa to atm unit.

The conversion factor used here is 1 atm = 101.3 kPa.

$21.1 kPa \times \frac{1atm}{101.3kPa}= 0.208 atm$

V = 3.0 L

T = 295 K

R = 0.0821 L-atm/mol K

Let us rearrange the equation to solve for n.

$n = \frac{PV}{RT}$

$n = \frac{0.208atm\times 3.0L}{0.0821 L.atm/mol K\times 295 K}$

$n = 0.026 mol$

0.026 moles of oxygen are in the lung

3 0

4 years ago

What is the total number of orbitals found in the second energy level?

erik [133]

Principal Energy Light Type of sub level Maximum number of electrons
P 8
2
S 18
3
P
Hope It really Helps

6 0

3 years ago