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Blizzard [7]
3 years ago
7

Write the technique used to seperated the following mixtures

Chemistry
1 answer:
SashulF [63]3 years ago
5 0

Answer: chromatography

Explanation:

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If the pressure of a gas sample is quadrupled and the absolute temperature is doubled, by what factor does the volume of the sam
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Answer:

D) 1/2

Explanation:

Using Ideal gas equation for same mole of gas as

\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}

Given,

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T₂ = 2T₁

Using above equation as:

\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}

\frac {{P_1}\times {V_1}}{T_1}=\frac {{4\times P_1}\times {V_2}}{2\times T_1}

V_2=\frac{1}{2}\times V_1

<u>The volume change by half of the original.</u>

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4 years ago
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Hydrochloric acid has the chemical formula HCl. A certain quantity of hydrochloric acid has 2.39x1024 atoms. How many moles of h
nasty-shy [4]

Answer: 3.97 moles HCl

Explanation: Solution:

2.39x10²⁴ atoms HCl x 1 mole HCl /

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8 0
3 years ago
What is the maximum value of the secondary quantum number (l) allowed for atomic electrons with a principal quantum number n = 7
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Explanation:

Principal quantum number=n=7

Azimuthal quantum number=l:-

\\ \sf\longmapsto n-1

\\ \sf\longmapsto 7-1

\\ \sf\longmapsto \ell=6

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3. What should you do after an earthquake when you are in a building?
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3. You should walk fast in moving out.

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5. Do not run

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3 years ago
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