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Mrrafil [7]
3 years ago
11

What land feature creates new land? Glacier Basin Volcano Desert

Chemistry
1 answer:
schepotkina [342]3 years ago
3 0

Answer:

Volcano

Explanation:

this is because Volcanoes erupt and the molten lava hardens and builds up to make land masses

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What volume would 8.01×1022 molecules of an ideal gas occupy at STP?
Nataly_w [17]

Explanation:

8.01 \times  {10}^{22}  \times  \frac{1}{6.02 \times  {10}^{23} }  \times  \frac{22.4}{1}  = 2.9804

5 0
3 years ago
POINTS!!!!!!!!!!................................................................................................................
statuscvo [17]
Hello!

Answer: 14.3%

Explanation: In order to find the mass percent of hydrogen in this compound, you must determine how many grams of hydrogen you'd get in 100 g of compound. 

In your case, you know that an unknown mass of hydrogen reacts with 0.771 g of carbon to form 0.90 g of hydrocarbon, which is a compound that contains only carbon and hydrogen. 

Use the total mass of the hydrocarbon to determine how many grams of hydrogen reacted with the carbon.

Now, if 0.90 g of this compound contain 0.129 g of hydrogen, it follows that 100 g of this compound will contain.

So, if 100 g of this compound contain 14.33 g of hydrogen, it follows that the mass percent of hydrogen is 14.3%


Hope this Helps! Have A Wonderful Day! :) 

8 0
3 years ago
Read 2 more answers
What distinguishes effusion from diffision? How are these processes similar?
zvonat [6]

Answer:

In effusion, a substance escapes through a tiny pinhole, or other hole whereas diffusion is the spreading out of a substance within a dispersing medium.

Effusion and diffusion are similar in terms of rates and speeds.

Explanation:

According to effusion, if there is a small hole in a container, a gas will leak from it. So, in this process a substance escapes through a tiny pinhole, or other hole.

According to diffusion, the two solutions will reach the lowest possible concentration of both, if they are combined and not mixed. So, diffusion is the spreading out of a substance within a dispersing medium.

Effusion and diffusion are similar in terms of rates and speeds.

7 0
3 years ago
The equilibrium constant for A + 2B → 3C is 2.1 * 10^-6
Mariana [72]

Answer:

b- 4.4 * 10^-12.

Explanation:

Hello.

In this case, as the reaction:

A + 2B → 3C

Has an equilibrium expression of:

K_1=\frac{[C]^3}{[A][B]^2}=2.1x10^{-6}

If we analyze the reaction:

2A + 4B → 6C

Which is twice the initial one, the equilibrium expression is:

K_2=\frac{[C]^6}{[A]^2[B]^4}

It means that the equilibrium constant of the second reaction is equal to the equilibrium constant of the first reaction powered to second power:

K_2=K_1^2

Thus, the equilibrium constant of the second reaction turns out:

K_2=(2.1 * 10^{-6})^2\\\\K_2=4.4x10^{-12}

Therefore, the answer is b- 4.4 * 10^-12.

Best regards.

7 0
3 years ago
The compound KOH is called
denis-greek [22]

Answer:

It is called Potassium Hydroxide

4 0
3 years ago
Read 2 more answers
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