Which of the following sequences of elements would all have four valence electrons?

Draw all of the Lewis structures of O2 which obey the octet rule and use this Lewis structure or these resonance structures to p

ryzh [129]

Answer:

Each oxygen atom is connected to the central O atom with 2 covalent bonds.

Explanation:

Oxygen atoms are connected by two covalent bonds in the oxygen molecule from the Lewis structure, we see that the bond order for O2 is 2 (a double bond) this is clearly seen in the image attached. There are no resonance structures for the oxygen molecule since there are no partial bonds in the molecule, only the two covalent bonds present.

This structure of oxygen shown in the image is its only structure, showing the covalent bonds formed and other non bonding electrons present in the molecule. The octet rule is followed in drawing the structure. Each oxygen atom possesses an octet of electrons on its outermost shell.

7 0

3 years ago

Abcdefghijklmnopqrstuvwxyz

Sholpan [36]

now I know my abcs next time wont you sing with me

8 0

3 years ago

Read 2 more answers

1. Which phase change is accompanied by the release of heat? A) H20(s)--> H2O(g) B) H20(l) ->H2O(s) C) H20(l)→ H2O(g) D) H

docker41 [41]

Answer:

B, liquid to solid.

Explanation: Since heat is being released, the particles for H2O would clump up. Heat is basically being taken out.

5 0

3 years ago

Select the correct answer. An adult human lung has a volume of 2. 9 liters. If its volume decreases to 1. 2 liters and it contai

maria [59]

Moles are the ratio of the mass and the molar mass of the substance given and is estimated in mol. The moles that the lungs contain when it is full is 0.12 moles.

<h3>What is the relation of the volume and moles?</h3>

Moles of the substances are directly proportional to the volume of the substance and can be shown as,

$\rm \dfrac{V_{1}}{V_{2}}= \dfrac{n_{1}}{n_{2}}$

Here,

Initial volume $\rm (V_{1})$ = 2.9 L

Final volume $\rm (V_{2})$ = 1.2 L

Initial moles = $\rm n_{1}$

Final moles $\rm (n_{2})$ = 0.049 mol

Substituting values in the equation:

$\begin{aligned} \dfrac{2.9}{1.2} &=\rm \dfrac{n_{1}}{0.049}\\\\&= \dfrac{2.9\times 0.049}{1.2}\\\\&= 0.12\;\rm mol\end{aligned}$

Therefore, the number of moles in the lungs are 0.12 moles.

Learn more about moles and volumes here:

brainly.com/question/13909347

6 0

2 years ago

Does anyone have the data table answers for 8.03 - Solutions Lab Report?

choli [55]

A laboratory report is an important part of the scientific process that communicate the important work that has been done.

<h3>How to depict the laboratory report?</h3>

Your information is incomplete. Therefore, an overview of a laboratory report will be given. The laboratory report is important for future studies a d experiments.

A laboratory report is broken down intosections such as title, abstract, introduction, methods, materials, results, discussion conclusion, and references.

Learn more about solutions lab report on:

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3 0

2 years ago