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Natali5045456 [20]
3 years ago
15

Which conditions result in the formation of frost?

Chemistry
1 answer:
hoa [83]3 years ago
7 0

Answer:

In order for frost to be formed, you would need high humidity, below-freezing temperatures, a clear sky, and a calm wind. Also, note that frost mostly occurs on a surface that is solid, so I would also put in a hard surface to the answer.

Explanation:

You need the hard surface so that the frost can form, otherwise it would become something like a cloud.

You need high humidity so that there is lots of water to form on your solid surface.

You need below-freezing temperatures so that the water can freeze.

The other things are just from what the Internet told me.

If this was helpful, please mark me as Brianliest!

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R = 0.821 ( atm Calculate the pressure in a 212 L tank containing 584 moles of Argon gas at 25℃? (Answer = 67.3 atm)
spayn [35]

Answer:

67.3 atm

Explanation:

We'll begin by converting 25 ℃ to Kelvin temperature. This can be obtained as follow:

T(K) = T(℃) + 273

T(℃) = 25 ℃

T(K) = 25 + 273

T(K) = 298 K

Finally, we shall determine the pressure. This can be obtained by using the ideal gas equation as illustrated below:

Gas constant (R) = 0.821 atm.L/Kmol

Volume (V) = 212 L

Number of mole (n) = 584 moles

Temperature (T) = 298 K

Pressure (P) =?

PV = nRT

P × 212 = 584 × 0.0821 × 298

P × 212 = 14288.0272

Divide both side by 212

P = 14288.0272 / 212

P = 67.3 atm

Thus, the pressure is 67.3 atm

3 0
3 years ago
How many atoms are present in 9.8g of H2SO4​
aleksley [76]

Answer:

Explanation:

98 gH

2

​

SO

4

​

contains1 mole of H

2

​

SO

4

​

.

1 mole of H

2

​

SO

4

​

contain=1 mole of sulphur atoms.

∴9.8 g of H

2

​

SO

4

​

contain =0.1 mol of sulphur atom.

Thus, number of sulphur-atoms =n×N

A

​

(in 9.8 g of H

2

​

SO

4

​

)

=0.1×6.023×10

23

=0.6023×10

23

.

7 0
3 years ago
What is the chemical symbol for nitrogen and oxygen?
irina1246 [14]
N2 and O2

hope it helps
6 0
3 years ago
Please help on this one?
Bezzdna [24]

Answer:

\text{C. } _{36}^{85}\text{Kr}

Explanation:

Your nuclear equation is  

_{35}^{85}\text{Br} \longrightarrow \, _{-1}^{0}\text{e} +\, _{x}^{y}\text{X}

The main point to remember in balancing nuclear equations is that

  • the sum of the superscripts and must be the same on each side of the equation.
  • the sum of the subscripts must be the same on each side of the equation.  

Then  

85 = 0 + y, so y = 85 - 0 = 0  

35 = -1 + x, so x = 35 + 1 = 36

The nucleus with atomic number 36 and atomic mass 85 is krypton-85.  

The nuclear equation becomes  

_{35}^{85}\text{Br} \longrightarrow \, _{-1}^{0}\text{e} + \, _{36}^{85}\text{Kr}

4 0
3 years ago
Read 2 more answers
What is a radioactive idotope?
kodGreya [7K]
An isotope is when a normal atom has too many neutrons and its weight has been offset.
5 0
4 years ago
Read 2 more answers
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