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Dima020 [189]
4 years ago
10

Which list ranks the gasses in the correct order from the

Chemistry
2 answers:
JulijaS [17]4 years ago
6 0

Answer:

D. chlorine, oxygen, nitrogen, hydrogen.

Explanation:

  • Thomas Graham found that, at a constant  temperature and pressure the rates of effusion  of various gases are inversely proportional to  the square root of their masses.

<em>ν ∝ 1/√M</em>

where ν is the rate of effusion and M is the atomic  or molecular mass of the gas particles.

  • The molecular mass for the listed gases are:

O₂: 32.0 g/mol,

Cl₂: 70.906 g/mol,

N₂: 28.0 g/mol,

H₂: 2.0 g/mol.

  • Hence, the smallest molecular mass of the gas, the fastest rate of effusion.

So, the order from the slowest to the fastest rate of effusion is:

<em>Chlorine, oxygen, nitrogen, hydrogen.</em>

Aleksandr-060686 [28]4 years ago
3 0

Answer:

It isn't C, it's D

Explanation:

chlorine, oxygen, nitrogen, hydrogen is the order of slowest to fastest.

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Elden [556K]

Answer:

13 moles of KClO₃ will decompose to gives 13 moles of KCl.

Explanation:

Given data:

Moles of potassium chloride = 13.0 mol

Moles of KClO₃ = ?

Solution:

Chemical equation:

2KClO₃ → 2KCl + 3O₂

Now we will compare the moles of KCl  with KClO₃.

                     KCl         :           KClO₃

                      2            :             2

                      13           :            13

So 13 moles of KClO₃ will decompose to gives 13 moles of KCl.

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How many protons, neutrons, and electrons does the following atom have?
yarga [219]

Answer:

Option C 28 Proton 31 neutron 26 elecrtons

Explanation:

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3 years ago
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Ostrovityanka [42]

Answer:

D, E and F

Explanation:

About tetrachloro cobalt complexes, the following facts have been observed  

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About hexa aqua cobalt complexes, the following facts have been observed  

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Based on above, the correct statements are:

The correct is chloro cobalt complex is blue and aqua cobalt  

complex is pink.  

The chloro complex is favored by heating.

If the chloro complex is a product, then the reaction must be endothermic.

The correct options are D, E and F.

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