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dybincka [34]
3 years ago
11

ENG

Chemistry
1 answer:
Varvara68 [4.7K]3 years ago
8 0
The sun is my black hole and technically is also the way that urnanus comes in contact with suck m wee wee
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A sample of helium has a temperature of 450 K. The gas is cooled to 248.9 K at which time the gas occupies 103.4 L? Assume press
Umnica [9.8K]

Answer:

\boxed{\text{163.3 L}}

Explanation:

The pressure is constant, so, to calculate the volume, we can use Charles' Law:

\dfrac{V_{1}}{T_{1}} = \dfrac{V_{2}}{T_{2}}

Data:

V₁ = ?;            T₁ =    450 K

V₂ = 103.4 L; T₂ = 284.9 K

Calculation:

\dfrac{ V_{1}}{450} = \dfrac{ 103.4}{284.9}\\\\{ V_{1}} = 450 \times \dfrac{103.4}{284.9}\\\\ = \textbf{163.3 L}\\\text{The original volume of the helium was $\boxed{\textbf{163.3 L}}$}

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3 years ago
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Illusion [34]

Answer:

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Explanation:

4 0
3 years ago
If there is a loss of 5.63 x 10-7kg of mass in a nuclear reaction, how many Joules of energy would be released? Recall that c =
Fudgin [204]
Thank you for posting your question here at brainly. 

E = mc^2 
<span>where E is the energy in joules, </span>
<span>m is the mass in kilograms, </span>
<span>and c is the speed of light. </span>

<span>E = mc^2 </span>
<span>E = (5.63 x 10^-7 kg)(3 x 10^8 m/s)^2 </span>
<span>E = 5.07 x 10^10 J </span>


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4 years ago
Please answer question 4 and the extension question<br><br> Thank you!!!
castortr0y [4]
Yes iron can conduct heat in fact it comes under the category of good conductors <span>machinery and any thing that is made out of the iron will conduct the
i hop this works ^-^</span>
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3 years ago
Which of the following best describes a vacuum?<br> Hot<br> Cold <br> Shiny<br> Empty
wel

Answer:

shiny

Explanation:

4 0
3 years ago
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