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andriy [413]
3 years ago
9

Is nitrogen gas a pure substance or a mixture

Chemistry
1 answer:
Verizon [17]3 years ago
3 0
Its a mixture because nitrogen gas is air. Air is homogeneous mixture
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You are working in a laboratory, and you are given the task of converting cyclopentene into 1, 5-pentanediol. Your first thought
Helen [10]

Answer:

Reagent A = H_3O^+

Reagent B=  Na_2Cr_2O_7~H_2SO_4~H_2O

Intermediate C= δ-Valerolactone

Explanation:

In the reaction from the alkene to the alcohol, we can use the <u>alkene hydration</u> in which the hydronium ion is added to the double bond followed by the attack of water to produce the <u>alcohol</u>.

Then in the conversion from alcohol to ketone can be produced if an <u>oxidant reactive</u><u> </u>is used. In this case the <u>Jones reagent </u>( Na_2Cr_2O_7~H_2SO_4~H_2O).

The intermediate is a structure produced by a <u>peroxyacid</u>. This reaction would introduce an <u>ester group </u>in the cycle generating the δ-Valerolactone (Figure 1).

7 0
3 years ago
How are a proton and a neutron alike?
baherus [9]

A. Each is found outside the nucleus

5 0
3 years ago
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Which of the following steps correctly converts 3 moles of fluorine to an equivalent number of particles of fluorine? Divide Avo
Eva8 [605]

Answer:

Multiply 3 by Avogadro's number.

Explanation:

The mole can be defined as the amount of a substance that contains Avogadro’s number of particles, 6.02 x 10²³.

For elementary particles:

Number of particles=

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8 0
3 years ago
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Marat540 [252]

Answer:

Velocity

Explanation:

The change of velocity rate it's the definition of acceleration.

While increasing or decreasing velocity, it means that an acceleration it's happening.

Using some math:

a=\frac{dv}{dt}

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4 years ago
How many grams of a 1000-gram radioactive sample are left after 3 half-lives? *
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The answer is 125 gms.

 

   


   


   


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4 years ago
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