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UkoKoshka [18]
3 years ago
8

Select the correct answer. Which statement best explains the octet rule? A. Atoms gain, lose, or share electrons to achieve a fu

ll valence shell. B. Compounds always consist of eight electrons. C. Molecules always consist of eight atoms. D. All atoms require eight electrons to form bonds.
Chemistry
2 answers:
ASHA 777 [7]3 years ago
6 0

A. Atoms gain, lose, or share electrons to achieve a full valence shell.

Oduvanchick [21]3 years ago
6 0
<h2>Answer </h2>

Option A - Atoms gain, lose, or share electrons to achieve a full valence shell.

<u>Explanation</u>

The octet rule is best explained as atoms gain, lose, or share electrons to achieve a full valence shell complete or to attain electronic configuration of noble gases. The main objective to do this is to attain stability.  The octet rule is a rule that shows the view that atoms of elements serve to join like that each atom has eight electrons in its valence shell, providing it the same electron configuration as a noble gas.

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I'm lost....can anyone explain please?
pashok25 [27]
I'll do A for you. They are all double displacement reactions. So recall: AB+CD--> CB+AD . Also, knowing the charges will help and make this so easy.
3 0
4 years ago
After 2.0s, Isabela . was riding her bicycle at 3.0m/s on a straight path. After 5.0s she was moving 5.4m/s. What was her accele
AysviL [449]

Answer:

Her acceleration was  0.8 m/s².

Explanation:

Given data:

Final speed v₂ = 5.4 m/s

Initial speed v₁= 3.0 m/s

Initial time t₁ = 2 s

Final time t₂ = 5 s

Acceleration = ?

Solution:

acceleration = (v₂- v₁) / (t₂ -  t₁)

acceleration = 5.4 - 3 / 5-2

acceleration = 2.4 / 3 = 0.8 m/s²

4 0
3 years ago
What is a likely result of an increase in average global temperatures on Earth?
Firdavs [7]

Answer:

A.

Explanation:

Warmer temperatures can also lead to a chain reaction of other changes around the world. That's because increasing air temperature also affects the oceans, weather patterns, snow and ice, and plants and animals. The warmer it gets, the more severe the impacts on people and the environment will be.

8 0
3 years ago
Sean drew this diagram and labeled an unknown gas A. Which gas does A represent?
Aneli [31]

The Correct answer is Carbon dioxide CO2.


The Explanation:


according to the diagram:


we can see that the arrows which going to A are from:


1- respirition of the tree . and the CO2 gas is the result and produced gas from respiration.


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4 0
4 years ago
Read 2 more answers
Determine the number of moles in 3.13 × 10²³ formula units of MgCl₂.
love history [14]

Answer:

<h2>0.52 moles </h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{3.13 \times  {10}^{23} }{6.02 \times  {10}^{23} }  =  \frac{3.13}{6.02}  \\  = 0.519933

We have the final answer as

<h3>0.52 moles</h3>

Hope this helps you

3 0
3 years ago
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