3 years ago

This timeline woulchre useful to someone who was writing a report titled

Chemistry

1 answer:

uysha [10]3 years ago

7 0

The best answer for this question would be B

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Which substance can not be broken down by a chemical change

tangare [24]

Well, an element is a substance that cannot be decomposed into a simpler substance by chemical change, so element is the answer you are probably looking for! Hope this helps!

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3 years ago

Which one of the following statements is correct?

adell [148]

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Tissues form organs, and organs form systems. Hope this helped!

Explanation:

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3 years ago

Can visible light cause damage that leads to skin cancer

11111nata11111 [884]

Visible and infrared light do not cause sunburn and they are not known to directly be a skin cancer risk.

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3 years ago

When liquid silver nitrate and liquid sodium chloride are combined it becomes

Maru [420]

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solid silver chloride forms along with a new liquid, sodium nitrate

Explanation:

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3 years ago

Calculate the osmotic pressure (in torr) of 6.00 L of an aqueous 0.958 M solution at 30.°C, if the solute concerned is totally i

cluponka [151]

<u>Answer:</u> The osmotic pressure is 54307.94 Torr.

<u>Explanation:</u>

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

$\pi=iCRT$

where,

$\pi$ = osmotic pressure of the solution = ?

i = Van't hoff factor = 3

C = concentration of solute = 0.958 M

R = Gas constant = $62.364\text{ L Torr }mol^{-1}K^{-1}$

T = temperature of the solution = $30^oC=[30+273]K=303K$

Putting values in above equation, we get:

$\pi=3\times 0.958mol/L\times 62.364\text{ L. Torr }mol^{-1}K^{-1}\times 303K\\\\\pi=54307.94Torr$

Hence, the osmotic pressure is 54307.94 Torr.

7 0

4 years ago