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Lubov Fominskaja [6]
3 years ago
6

Which of these is most likely to create large areas of land subsidence?

Chemistry
1 answer:
Mumz [18]3 years ago
6 0
I think it is Global warming
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Two identical containers, one red and one yellow, are inflated with different gases at the same volume and pressure. Both contai
Evgen [1.6K]

Answer:

8

Explanation:

Here we're dealing with the root mean square velocity of gases. We'll provide the formula in order to calculate the root mean square velocity of a gas:

v_{rms}=\sqrt{\frac{3RT}{M}}

Here:

R = 8.314 \frac{J}{K mol} is the ideal gas law constant;

T is the absolute temperature in K;

M is the molar mass of a compound in kg/mol.

We know that the gas from the red container is 4 times faster, as it takes 4 times as long for the yellow container to leak out, this means:

\frac{v_{rms, red}}{v_{rms, yellow}} = 4

We also know that the temperature of the red container is twice as large:

\frac{T_{red}}{T_{yellow}} = 2

Write the ratio of the velocities and substitute the variables:

\frac{v_{rms, red}}{v_{rms, yellow}}=\frac{\sqrt{\frac{3RT_{red}}{M_{red}}}}{\sqrt{\frac{3RT_{yellow}}{M_{yellow}}}}=4

Then:

\frac{\sqrt{\frac{3RT_{red}}{M_{red}}}}{\sqrt{\frac{3RT_{yellow}}{M_{yellow}}}}=\sqrt{\frac{3RT_{red}}{M_{red}}\cdot \frac{M_{yellow}}{3RT_{yellow}}}=\sqrt{\frac{T_{red}}{T_{yellow}}\cdot \frac{M_{yellow}}{M_{red}}}=4

From here:

16 = \frac{T_{red}}{T_{yellow}}\cdot \frac{M_{yellow}}{M_{red}}

Then:

\frac{M_{yellow}}{M_{red}} = \frac{16}{\frac{T_{red}}{T_{yellow}}} = \frac{16}{2} = 8

5 0
3 years ago
Which of the following has the most stable nucleus? <br><br> Fe<br><br> He<br><br> U<br><br> B
Harlamova29_29 [7]

Answer:

Fe

Explanation:

<em>Ferrum</em><em> </em>[Iron] has the most stable nucleus because of <em>binding</em><em> </em><em>energy</em><em> </em><em>per</em><em> </em><em>nucleon</em><em>.</em><em> </em>Although Uranium<em> </em>is<em> </em>another possibility, in this case, it is more radioactive than Iron. It disintegrates very swiftly that all is done so, just to achieve stability.

I hope this helps you out alot, and as always, I am joyous to assist anyone at any time.

3 0
3 years ago
What are the evidences for suspecting the presence of waves?
Vsevolod [243]

Answer:

Well,

Conducting rods are good for detecting oscillating electric fields and conducting loops are good for detecting the presence of radio waves.  

5 0
3 years ago
Predict the shape of the molecule.
GuDViN [60]

Number of electron pairs = \frac{1}{2}[V+N-C+A]

2

1

[V+N−C+A]

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

SbCl_5SbCl

5

:

In the given molecule, antimony is the central atom and there are five chlorine as monovalent atoms.

The number of electron pairs are 5 that means the hybridization will be sp^3dsp

3

B and geometry of the molecule will be trigonal bipyramidal.

6 0
2 years ago
I NEED HELP RIGHT NOW
PolarNik [594]
There are a total of 4 elements
7 0
3 years ago
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