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Svetllana [295]
2 years ago
10

Now look at the segment of the graph between the two data points marked with red squares. Describe how the boiling point and mel

ting point plots behave for these points. ​
The melting and boiling points are the practically the same for each element

The melting points are higher than the boiling points for each element

The boiling points are higher than the boiling points for each element
Chemistry
2 answers:
laila [671]2 years ago
6 0
B maybe not to sure I think so though
yKpoI14uk [10]2 years ago
4 0

I cant do much without the image but C might be it. Again i cant know for sure without the image.

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Answer:

There are no unpaired electrons.

Explanation:

There are  no unpaired electrons in the Lewis symbol for a nitride ion({ N }^{ 3- }).The nitride ion has a charge of -3. The negative charge on the Nitride ion indicates a gain in electrons . Nitrogen has 5 valence electrons that is the number of electrons that are in its outer shell .The total number of electrons that the nitride ion has is equal to 5+3 = 8 electrons . Electrons usually appear in pairs and obey the octet rule therefore the nitride ion has four electron pairs no unpaired electrons.

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Calculate the pressure exerted by an book of mass 20kg occupying an area of 2 m square.​
kotykmax [81]

The answer is 100 Pa.

The formula for calculating pressure is :

<u>Pressure = Force ÷ Area</u>

<u />

We are given that :

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<u>Force = mass ×g</u>

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So, force will be :

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Now, we can finally calculate pressure :

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