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Crazy boy [7]
3 years ago
9

Calorimetric studies show that the reaction is exothermic. 2NO2(g) N2O4(g) + 14.1 kcal. Based on this information, which one--if

any--of the following additional changes would increase the molar concentration at equilibrium of N2O4(g)?
decrease the pressure

increase the temperature

decrease the concentration of NO2(g)

stir the reaction mixture

none of the above
Chemistry
1 answer:
FinnZ [79.3K]3 years ago
5 0
In order for you to get the answer, please have in mind the following situation: To increase the molar concentration of N2O4(g), 2NO2(g) should also increase for equilibrium to occur. Now, this equation is exothermic. By <span>Le Chatelier's principle, equilibrium constant and reaction constants also come into play in terms of increasing or decreasing the temperature. After that I know you can find the answer. </span>
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What is the force of attraction between covalently bonds molecules
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The bound state implies a net attractive force between<span> the atoms.</span><span> </span>bond<span> in which one or more electrons from one atom are removed and attached to another atom, resulting in positive and negative ions which attract each other. hope it helps 

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6 0
4 years ago
A student builds a model of a race car. The scale is 1:15. In the scale model, the car is 8 cm tall.How tall is the actual car?
Xelga [282]

let the actual height of car be x

now, according to question,

  • \dfrac{1}{15}  =  \dfrac{8}{x}

  • x = 15 \times 8

  • x = 120 \:  \: cm

  • height \:  \: of \:  \: car   =   120 \:   cm \:  \: or \:  \: 1.2 \:  \: m
5 0
2 years ago
What type of ions are commonly formed from halogens​
goldfiish [28.3K]

Answer:

<em>they</em><em> </em><em>all </em><em>form</em><em> </em><em>diatomic </em><em>molecules.</em><em> </em>

<em>for</em><em> example</em><em>:</em><em> </em><em>H</em><em>2</em><em>,</em><em> </em><em>F2, Cl2, Br2, I2, and At2</em><em>)</em><em> </em><em>and they all form </em><em><u>negatively charged ions</u></em><em> H-, F-, Cl-, Br-, I-, and At</em><em>-</em><em> </em><em>.</em>

4 0
3 years ago
Explain whether chromium is more or less reactive than aluminium.
Brrunno [24]

Answer: Chromium is less reactive as compared to Aluminium as it can not easily electrons as aluminium.

Explanation:

The arrangement of metals in a series according to the decreasing order of their reactivity is called reactivity series.

The metals that are placed above hydrogen are more reactive and those below hydrogen are less reactive.

A metal placed above another metal can displace lower metal from its salt solution. Thus a metal placed above in series is more reactive than metals placed below it.

As aluminium can easily lose electrons as compared to chromium , it is more reactive than Chromium.

5 0
3 years ago
What is the emperor call formula for a compound that is 31.9% potassium 28.9% chloride and 39.2% oxygen
My name is Ann [436]
Lets take 100 g compound.
It will have
K - 31.9 g
Cl - 28.9 g
O - 39.2 g

M(K) = 39.1 g/mol
M(Cl) = 35.5 g/mol
M(O) = 16.0 g/mol

K - 31.9 g*1/mol/39.1 g ≈ 0.816 mol
Cl - 28.9 g*1 mol/35.5 g ≈ 0.814 mol
O - 39.2 g*1mol/16.0 g ≈ 2.45 mol

K : Cl : O = 0.816 : 0.814 : 2.45

K : Cl : O = 1 : 1 : 3

KClO3 - potassium chlorate (<span>Berthelot's salt)  </span>
3 0
4 years ago
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