3 years ago

Which of the following actions decreases the entropy of a system?

Chemistry

1 answer:

Keith_Richards [23]3 years ago

5 0

Answer:

b- freezing water

Explanation:

Solid<liquid<gas is the general rule for entropy increase

Freezing water would change the phase from liquid to solid which would lead to less entropy

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The color and boiling point of a substance are both examples of

BartSMP [9]

Answer:

Instensive physical properties

Explanation:

bc they don't depend the amount of matter in the substance

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3 years ago

Do all dipole-dipole forces have the same strength?

n200080 [17]

Inter molecula force
1- hydrogen bond
2- ion bond
3- dipole dipole
4- dipole bond or van der wael
but not all dipole dipole has the same strength

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3 years ago

Which shows an isomer of the molecule below?

Lera25 [3.4K]

Answer:

Explanation:

the answer will be letter B

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2 years ago

How do you find a mole (i need an example) i hate chem pls help

galben [10]

Answer:

I'm pretty sure its just the mass of the sample divided by the molar mass

for example if I had like 7g of carbon and wanted to find the moles, I would divide the mass I have (7g) by the molar mass (the atomic mass value on your periodic table, in this case for carbon it would be 14g)

moles = $\frac{mass}{molarmass} = \frac{7}{14} = 0.5\ moles$

Hope this helped

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2 years ago

in simple diffusion, molecules move from an area of ____ concentration to an area of ____ concentration.

liq [111]

Answer:

high, low

Explanation:

In simple diffusion, molecules move from an area of high concentration to an area of low concentration.

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2 years ago