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3 years ago

12.

Chemistry

2 answers:

podryga [215]3 years ago

8 0

Answer: The pair of valence electrons that do not participate in the bonding are lone pairs.

Explanation:

There are 2 types of pair of electrons that are studied in the bonding. They are:

Bonding pairs: These pair of electrons participate in the bond formation. They exist as bonds in a molecule. They are also known as bond pairs.
Non-bonding pairs: These pair of electrons do not participate in the bond formation. They exist as lone pairs in a molecule.

Oxygen is the 8th element of the periodic table having electronic configuration of $1s^22s^22p^4$

Number of valence electrons = (2 + 4) = 6

Oxygen needs 2 electrons to complete its octet. When another oxygen combines, they share 2 electrons each forming a double bond.

The Lewis dot structure of oxygen molecule is given below.

Hence, the pair of valence electrons that do not participate in the bonding are lone pairs.

Veronika [31]3 years ago

3 0

Answer:

Nonbonding pairs of electrons.

Explanation:

Both oxygen atoms in the diatomic molecule have two nonbonding pairs. This results in the oxygen molecule having a planar geometric shape. This is because nonbonding pairs repel each other are significant in determining the shape of a molecule.

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A farmer uses water to irrigate his potato crops. Which roles of water does this examplify

exis [7]

Answer:

This exemplifies the agricultural role of water.

Explanation:

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2 years ago

Carbon dioxide is a...

Marina86 [1]

Answer: Option B) Pure Substance &

Compound

Explanation:

Carbon dioxide is a compound because it is formed when one carbon atom and two oxygen atoms chemically combined together.

C(s) + O2(g) ---> CO2(g)

Also, CO2 is a pure substance because it is natural and cannot be broken down easily or separated by physical methods.

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2 years ago

What is the charge of oxygen in Na2O?

Nuetrik [128]

In Na2O, what is the oxidation state of oxygen? In Na2O oxidation state of Na is 1+

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2 years ago

Read 2 more answers

Determine the electron-group arrangement, molecular shape, and ideal bond angle(s) for each of the following:

Alja [10]

The electron-group arrangement of CO₃²⁻ is trigonal planar. The molecular shape is trigonal planar, and the ideal bond angle(s) is CO₃²⁻ is 120°

<h3>What is the molecular geometry of a compound?</h3>

The position of the compound's electrons and nuclei can be seen in the molecular geometry. It demonstrates how the form of the complex is created by the interaction of electrons and nuclei.

Here, according to the VSEPR theory, the shape of the carbonate ion is trigonal planar. The carbon will be in the center.

Thus, the electron-group arrangement and the shape of the carbonate ion are trigonal planar. The bond angle will be 120°.

To learn more about molecular geometry, refer to the link:

brainly.com/question/16178099

#SPJ4

6 0

1 year ago

How many moles of lithium chloride will be formed by the reaction of chloride with 4.28 mol of lithium bromide in the following

lys-0071 [83]

Answer:

The answer is 4.28 moles

Explanation:

This is super easy okay, you won't forget this!

Basically mole ratios, we're just looking at the coefficients in front of the compounds, multiplying them, and dividing them as we see fit.

In this example, you can see how you need 2 moles of lithium bromide (LiBr) for the reaction, and 2 moles of lithium chloride (LiCl) will be produced.

Basically, the molar ratio is when you divide numbers and see how much of this do I have for that (if that makes sense).

So if you were to divide the 2 moles of LiBr / 2 moles of LiCl = 1. So we know that the mole ratio for LiBr to LiCl is 1:1 or 2:2, either or, it's the same thing.

SO THE BIG IDEA, if we have 4.28 moles of lithium bromide reacting, we should also have 4.28 moles of lithium chloride produced, BECAUSE the mole ratio is 1:1.

I hope this makes sense please tell me if it doesn't, I will try my best to explain a little more.

7 0

2 years ago