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Mariana [72]
3 years ago
15

Which lewis electron-dot diagram represents a nitrogen atom in the ground state

Chemistry
2 answers:
marin [14]3 years ago
7 0
To do this, you 1st figure out the atomic number of which ever element you are working on. In this case, it's Nitrogen. Nitrogen has an atomic number of 7. So basically, you right N with 2 dots on top of it, 2 dots to the right, 2 dots below N and 1 dot to the left of N.
Burka [1]3 years ago
4 0

its number 3 the N with 5 dots

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Explanation:

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4 0
3 years ago
How much energy would be absorbed as heat by 75 g of iron when heated from 295 k to 301 k?
Katen [24]

Answer:

Q=202.5J

Explanation:

Hello,

In this case, the increase in the temperature involves the addition of heat that is defined in terms of mass, heat capacity and temperature:

Q=mCp(T_2-T_1)

In this case, the heat capacity of iron is 0.450 J/(g*K), thus the heat results:

Q=75g*0.450\frac{J}{g*K}*(301-295)K\\\\Q=202.5J

In such a way, since the temperature is increased heat is added, that is why it is positive.

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4 0
4 years ago
Read 2 more answers
2.
oksano4ka [1.4K]
D. 293
According to Charle’s law, with pressure being constant, an increase in volume will also increase the temperature. 10 degrees Celsius is 283 K, so you would need to find the number greater than 283 K which is 293 K.
3 0
3 years ago
If there is only one type of cation that can be formed from an element, what do we do with its name?
KatRina [158]

Answer:

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Explanation:

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6 0
3 years ago
The diagrams represent the same number of particles of a gas in 2 containers D snd E, Which have different volume. the two conta
MrRissso [65]

In container E, the pressure will be higher than container D

<h3>Further explanation</h3>

Given

Container with :

  • the same particles
  • the same temperature
  • the different volume

Required

The higher pressure container

<h3>Solution</h3>

Boyle's Law  stated that :

At a constant temperature, the gas volume is inversely proportional to the pressure applied  

\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}

From the diagram (picture), it shows that the volume of container D is greater than container E, <em>so the pressure applied to container D </em><em>will be less than</em><em> the pressure applied to container E</em>

<em />

8 0
3 years ago
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