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3 years ago

What factors play a role in the rate at which molecules like O₂ and CO₂ can diffuse?

Chemistry

1 answer:

nadezda [96]3 years ago

8 0

Answer:

The correct answer is b the magnitude of the concentration gradient of the molecule.

Explanation:

Dffusion is one of most important membrane transport process that allow several molecules such as gases oxygen and carbon dioxide to pass directly across the plasma membrane.The is no involvement of carrier proteins or ion channels during passive diffusion.

During passive diffusion molecules are transported along their concentration gradient that means from the region of high concentration to region of low concentration,until the concentration of both regions become same.

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What is used to measure the distance of nearby stars??

Allisa [31]

Light years? if you are talking about the distance to the star.

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3 years ago

In the mid-1900s, most scientists used the Bohr atomic model to study atoms. In the Bohr model, electrons move in set paths arou

Novosadov [1.4K]

The answer is c beca it true

5 0

3 years ago

Read 2 more answers

The electronic configuration of an atom of element X is 2,8,2 what will be the valency of the element x

KIM [24]

The element is Magnesium

It has total 12 electrons

it has electronic configuration

$\\ \sf\longmapsto 2,8,2$

$\\ \sf\longmapsto 1s^22s^22p^63s^2$

In valence cell it has 2 electrons and therefore its valency is 2

6 0

3 years ago

C3H8+3O2 = 3CO2+4H2O what is the enthalpy combustion please show work

irakobra [83]

Answer:

$\Delta H_{comb}=2043.85kJ/mol$

Explanation:

Hello there!

In this case, according to the given chemical reaction, it possible for us to set up the expression for the calculation of the enthalpy change as shown below:

$\Delta H_r=-\Delta H_{comb}=3\Delta _fH_{CO_2}+4\Delta _fH_{H_2O}-\Delta _fH_{C_3H_8}-3\Delta _fH_{O_2}$

Thus, given the values of the enthalpies of formation on the attached file, we obtain: $-\Delta H_{comb}=3(-393.5kJ/mol)+4(-241.8kJ/mol)-(-103.85kJ/mol)-3(0kJ/mol)\\\\-\Delta H_{comb}=-2043.85kJ/mol\\\\\Delta H_{comb}=2043.85kJ/mol$

Best regards!

5 0

3 years ago

Reaction of hexamethylbenzene with methyl chloride and aluminum chloride gave a salt a, which, on being treated with aqueous sod

GREYUIT [131]

Answer: -

The first step involves reaction of methyl chloride with AlCl₃.

Then the compound A generates by attack of pi bond on CH₃.

Then there is a rearrangement of the carbocation from 2° to 3°.

Finally a H⁺ is lost to give B

7 0

3 years ago