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2 years ago

Which statement about atmospheric pressure near Earth’s surface is true?

2 answers:

6 0

I think the correct answer from the choices listed above is option B. The statement that is true about the atmospheric pressure near Earth’s surface would be that it decreases as you move away from Earth’s surface. P<span>ressure decreases with increasing altitude. Hope this answers the question.</span>

Dominik [7]2 years ago

6 0

Answer : Option B) It decreases as someone moves away from earth's surface.

Explanation : The atmospheric pressure at the surface of the earth is at maximum, it is seen that as we move away from the surface of the earth the pressure decreases. As on the top of mountains the atmospheric pressure is found to be low as compared to the surface of the earth.

It is assumed that the atmospheric pressure is caused due to hydrostatic measurements where the changes caused by weight of air are measured.

Also, it is observed that when there is an elevation, the atmospheric pressure decreases.

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What will happen if there is an insufficient supply of oxygen during the combustion of a hydrocarbon?

Novay_Z [31]

Then it will blow or make a big eruption then you might die

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3 years ago

Write a balanced equation for the neutralization reaction between the following (you do not need to include states of matter):

givi [52]

Answer:

Both have the same balance on a weight with. 2 dimensional figures on the area formula

Explanation:

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1 year ago

How many moles of MgCl2 are there in 319 g of the compound?

Leokris [45]

Hey there!:

Molar mass MgCl2 = 95.2110 g/mol

So:

1 mole MgCl2 -------------- 95.2110 g

moles MgCl2 ---------------- 319 g

moles MgCl2 = 319 * 1 / 95.2110

moles MgCl2 = 319 / 95.2110

=> 3.350 moles of MgCl2

Hope that helps!

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2 years ago

The monomer of poly(vinyl chloride) has the formula C2H3Cl. If there are 1,565 repeat units in a single chain of the polymer, wh

monitta

Answer:

$\large \boxed{9.780 \times 10^{4}\text{ u}}$

Explanation:

The molecular mass of a monomer unit is:

C₂H₃Cl = 2×12.01 + 3×1.008 + 35.45 = 24.02 + 3.024 + 35.45 = 62.494 u

For 1565 units,

$\text{Molecular mass} = \text{1565 units} \times \dfrac{\text{62.494 u}}{\text{1 unit }} = \mathbf{9.780 \times 10^{4}}\textbf{ u}\\\\\text{The molecular mass of the chain is $\large \boxed{\mathbf{9.780 \times 10^{4}}\textbf{ u}}$}$

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2 years ago

Method that used to separate kerosine and water?

nata0808 [166]

You can use a separating funnel. The person will go the top and the water to the bottom.

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3 years ago

Read 2 more answers