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jek_recluse [69]
2 years ago
14

Scientists observe patterns in how molecules interact with each other. At the same temperature, for example, liquids have more a

ttraction between particles than gases do. Water (H2O) is a liquid at room temperature, while carbon dioxide (CO2) is a gas at room temperature. Why? Choose the two statements that apply.
A. Nonpolar molecules only attract polar molecules.
B. Polar molecules attract each other more than nonpolar molecules do.
C. Water molecules are polar. Carbon dioxide molecules are not.
D. Carbon dioxide molecules do not have polar bonds. Water
molecules do.
Chemistry
1 answer:
Alla [95]2 years ago
7 0

Answer:

Hello

I am Parth

Can we became friends

and ur intro plz

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3 years ago
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Answer:

7.5 L of the 10% and 22.5 L of the 30% acid solution, she should mix.

Explanation:

Let the volume of 10% acid solution used to make the mixture = x L

So, the volume of 30% acid solution used to make the mixture = y L

Total volume of the mixture = <u>x + y = 30 L .................. (1) </u>

For 10% acid solution:

C₁ = 10% , V₁ = x L

For 30% acid solution :

C₂ = 30% , V₂ = y L

For the resultant solution of sulfuric acid:

C₃ = 25% , V₃ = 30 L

Using  

C₁V₁ + C₂V₂ = C₃V₃

10×x + 30×y = 25×30

So,  

<u>x + 3y = 75 .................. (2) </u>

Solving 1 and 2 we get,

<u>x = 7.5 L </u>

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There are two carbon atoms in every ethanol molecule, so there would be 60 carbons all together.

I hope this helped you!
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I got this stupid question wrong so that you people don't have to. I simply hate chemistry and I wish it didn't exist. Kind of like this website that makes me explain the answer. 

Trust me, the answer is correct
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