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Ahat [919]
3 years ago
7

What keeps the Earth's atmosphere from floating away?

Chemistry
2 answers:
Vikki [24]3 years ago
8 0
Correct Option is "A"


Hope this Helps!
Anna11 [10]3 years ago
7 0
Is this it <span>A. Earth's gravity keeps the air molecules of the atmosphere from escaping the area surround Earth</span>
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A 2.2 M solution is made by with 0.45 moles of a solute. What is the final volume of this solution?
Savatey [412]

Answer: The final volume of this solution is 0.204 L.

Explanation:

Given: Molarity of solution = 2.2 M

Moles of solute = 0.45 mol

Molarity is the number of moles of solute present divided by volume in liters.

Molarity = \frac{no. of moles}{Volume (in L)}

Substitute the values into above formula as follows.

Molarity = \frac{no. of moles}{Volume (in L)}\\2.2 M = \frac{0.45}{Volume}\\Volume = 0.204 L

Thus, we can conclude that the final volume of this solution is 0.204 L.

7 0
3 years ago
Which of the following is not a postulate of the kinetic-molecular theory? A. Gas particles have a high force of attraction to o
PolarNik [594]
<span>Following are important postulates of Kinetic theory of gases

1) Gases are made up of number of particles. 
this particles  behaves like hard and spherical objects, which are in constant state of motion.
2)  The particles always travel in a straight line until they collide with another particle or the walls of the container.
3) Particles are of smaller size as compared to the distance between particles.
4) There exist minimal/no force of attraction between the gas particles neither there exist attractive interaction between the particles and the walls of the container.
5) Collisions between gas particles or with the walls of the container are  elastic in nature. 

Thus, statement a i.e. </span><span>Gas particles have a high force of attraction to one another or to the walls of the container contradicts the postulates of kinetic theory of gases</span>
3 0
3 years ago
Read 2 more answers
A wooden block has a length of 4.0 cm, a width of 2.0 cm, and a height of 1.0 cm. What is the volume of this block?
MakcuM [25]
Use the formula for volume. V = lwh. Plug in the numbers for length, width, and height. Now we have V = 4.0 x 2.0 x 1.0, which is 8.0. So the volume of the block is 8.0 cm.

Thanks for your question! Don't forget to rate and give me the brainliest answer! Then, I can help you with all your problems! ^-^ ~
8 0
3 years ago
Write the symbol for every chemical element that has atomic number greater than 70 and atomic mass less than 185.2
egoroff_w [7]

Answer:

HF...Ta... W....Lu...

4 0
3 years ago
The _ lobe is important in processing visual information.
adelina 88 [10]

Answer:

It's D

Explanation:

7 0
3 years ago
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