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2 years ago

Which of the following is an example of climate?

Chemistry

2 answers:

Svetach [21]2 years ago

7 0

"<span>A. The polar regions have long winters and short, cool summers." would be the correct answer.
</span>

sertanlavr [38]2 years ago

7 0

B is the correct answer

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The atoms of platinum and silver are identical (true or false)

koban [17]

Answer:

I think it's false but not sure

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1 year ago

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What keeps the water cycle going?

a_sh-v [17]

The constant use of water flow throwout nature and the way that we use it now isint good and most likly we will be out of water by the year 2055

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2 years ago

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What is the value of the equilibrium constant at 25 oC for the reaction between the pair: I2(s) and Br-(aq) Give your answer usi

insens350 [35]

Explanation:

Formula to calculate standard electrode potential is as follows.

$E^{o}_{cell} = E^{0}_{cathode} - E^{0}_{anode}$

= 0.535 - 1.065

= - 0.53 V

Also, it is known that relation between $E^{o}_{cell}$ and K is as follows.

$E^{o}_{cell} = \frac{RT}{nF} \times ln K$

ln K = $\frac{nFE^{0}_{cell}}{RT}$

Substituting the given values into the above formula as follows.

ln K = $\frac{nFE^{0}_{cell}}{RT}$

= $\frac{2 \times 96485 C mol^{-1} \times -0.53 V}{8.314 l atm/mol K \times 298 K} \times \frac{1 J}{1 V C}$

ln K = -41.28

K = $e^{-41.28}$

= $1 \times 10^{-18}$

Thus, we can conclude that the value of the equilibrium constant for the given reaction is $1 \times 10^{-18}$ .

5 0

2 years ago

Why do solids expand on heating?

sdas [7]

Explanation:

The molecules of solids are shrinked in there normal state . but as a heat energy is produced , the molecules starts curating fast and fast as temperature goes up . since they vibrate , they hit and collide each other breaking the bondings this increases the surface of area of the solid , and molecules consumes that space and they expand .

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2 years ago

Does anyone know Bible thing cuz I don’t know what to write and I need help if you know this ok

Keith_Richards [23]

I answered all of them except 2 for you to do

Hope this helps :))

Download docx

4 0

1 year ago