Chemistry High School

6)
Use VSEPR to predict the electron-pair geometry of O2.
A)
linear
B)
trigonal planar
C)
tetrahedral
ientific
Calc
D)
trigonal bipyramidal

Answers

Answer 1

Answer:

A.) Linear

Explanation:

Answer 2

The geometry of the molecular oxygen (O₂) is linear. Thus, option (A) is correct.

What is VSEPR theory?

Valence shell electron-pair repulsion theory (VSEPR theory) is used to predict the molecular structure, and bond angles around a central atom of a molecule by using the number of bonds and lone electron pairs in Lewis structure.

The VSEPR model considers that electron pairs present in the valence shell of a central atom have an arrangement so that repulsions between these electron pairs will be minimized by maximizing the distance between them.

The valence electrons of a central atom form either bonding pairs or lone pairs. The electrostatic repulsion of these electrons is minimized when several regions of high electron density maximum possible distance.

The oxygen molecule has linear geometry with a bond angle of 180°. Each oxygen in oxygen molecule has two lone pairs of electrons on it.

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Related Questions

How is it determined the highest energy level an atom has
A. By the group number
B. By the period number
C. By the atomic number
D. By the mass number

Answers

Answer:

C. Atomic mass

Explanation:

i just did the quiz and got 100 :) i hope I get brainiest answer

true or false, vaporization that occurs at the surface of a liquid is called evaporation

Answers

Answer:

True

Explanation:

Vaporization that happens below the surface is boiling, above the surface is evaporation :)

Answer:

True

Explanation:

it evaporates because of the temperature difference

Theme parks can snap a crystal clear picture of you on a roller coaster at 70 mph, but bank cameras can't get a clear shot of a robber standing still.

bruh.

Answers

I KNOW RIGHTTTTT!!!!

Answer:

I know right

Explanation:

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Which phrase accurately describes the location of Africa? O mostly in the eastern hemisphere mostly south of the Tropic of Capricorn O borders the Pacific Ocean O lies north of Europe​

Answers

Answer:

mostly in the eastern hemisphere mostly south of the Tropic of Capricorn

Explanation:

The statement which best describes the location of Africa is that it is found

mostly in the eastern hemisphere.

Africa is a continent which comprises of countries such as Nigeria, Ghana,

Kenya etc. It is bounded on the north by the tropic of cancer and towards

the south of the tropic of capricorn.

Africa also lies in the eastern hemisphere and is found to the south of the

European continent.

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Describe the classification of electromagnetic radiation.

Answers

Answer:

The EM spectrum

Explanation:

The EM spectrum is generally divided into seven regions, in order of decreasing wavelength and increasing energy and frequency. The common designations are: radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays.

how does skin protect the body from pathogens?
A it produces whit blood cells that reconize and eat pathogens.
b it transsfers pathogens to lymph and blood plasma
c it traps pathogens in oil and seat produced by glands.
d. it has hairs that sweep pathogens away from the body

Answers

Answer:

C: It traps pathogens in oil and sweat

Explanation:

The skin has oil and sweat which kills pathogens as they are like a waterbarrier.

The skin protects the body from pathogens by trapping pathogens in oil and sweat produced by glands. Thus, the correct option for this question is C.

What are Pathogens?

Pathogens may be defined as those living organisms which are capable of inducing diseases in other living organisms including humans. Some examples of pathogens include bacteria, fungi, protozoa, etc.

Skin is considered the first line of defense against pathogens in humans. This is because skin significantly consists of sebaceous and sweat glands that consistently secrete oils and sweat that trap the pathogens and eliminate them from entering the body.

Therefore, the skin protects the body from pathogens by trapping pathogens in oil and sweat produced by glands. Thus, the correct option for this question is C.

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The periodic table includes all of the known elements in the world. How are elements
arranged on the periodic table?
a. by the element's name
b. by their atomic mass
c. by the number of neutrons found in the element
d. by their atomic number

Answers

Answer: D: by their atomic number

Explanation:

Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. The rows are called periods

Please help! Will mark brainliest!

Answers

Answer:

A

Explanation:

A is the answer to the question

PLEASE HELP HURRY ILL MARK BRAINLEST

Answers

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. ... Plant cells can be larger than animal cells.

Can someone pls help

Answers

D, the answer you have.

Have a good one!

salks vaccine trail was a double-blind experiment true or false

Answers

Answer:

true

Explanation:

Atoms and elements are examples of A. molecules. B. mixtures. C. compounds. D. pure substances.

Answers

Answer:

atom are very tiny partical

What is a probable reason that a trait skips a generation?

Answers

Answer:

A!

Explanation:

Condensation point AND freezing point of oxygen in C and F?

Answers

Answer:54.36 K (−218.79 °C; −361.82 °F)

Explanation:

what type of weather forecasting can forecast from 3-7 days? I NEED ANSWERS FAST!!!

Answers

Answer:

WPC medium range forecasting

Explanation:

If one jellybean weighs 0.350g how many jelly beans are in 504g of jellybeans?

Answers

Answer:

1440g

Explanation:

Divide 504g by 0.350g

Identify the following structure as an atom, molecule, or compound molecule.


Hydrogen



A.atoms
B. molecules
C.compound molecules​

Answers

Answer:

A

Explanation:

The answer is A because Hydrogen is an Atom consists of 1 electron only.

Good luck

Predict the products when aqueous solutions of sodium carbonate and calcium chloride are combined.
A)
SC(aq). CaCN)
B)
NaCl(aq), CaC)
C)
NaCl(aq), CaCO3(s)
D)
Na2CO3(aq). CaCl2(aq)

Answers

ANSWERRRR ISSSS ▼・ᴥ・▼CCCCCC!

I’ll mark you brainlist plz

Answers

Answer:

I think nuetron stars

Explanation:

the reason two atoms would form an ionic compound instead of a covalent compound mainly depends on their

Answers

I believe it depends on they’re electrons, if there was an transfer of electrons/losing or gaining e- it would be ionic and the bond is between M+Nm while Covalent is formed when atoms share e- and the bond is normally between Non-metals Nm+Nm, And Metallic bonds is called the sea of “e-“ and is normally only between Metals M+M

How many moles of sodium hydroxide, NaOH, are in a 35.65 g sample of NaOH?

Answers

Answer:0.8910 mols of NaOH in a 35.65 g sample of NaOH

Explanation:

Answer correctly please !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!

Answers

Answer:

endothermic or absorb energy

Explanation:

google :)

Endothermic energy. When you don’t know the answer search in goggle :)

What is the "mass number"? What does the mass number tell you?

Answers

Total number of protons and neutrons in the atomic nucleus. When you see a periodic table the order is usually the atomic number, the element symbol, the name, and then the atomic mass.

another science question plz answer ASAP b/c its timed

Answers

Answer:

D

Explanation:

What is the total number of electrons in an atom of an element with an atomic number of 18 and a mass number
of 40?
a. 58
c. 22
b. 18
d. 40

Answers

Answer:

18

Explanation:

In neutral atom protons and electrons are equal in number as it atomic number or proton number is 18 so electrons are also 18

The total number of electrons in an atom of an element with an atomic number of 18 and a mass number of 40 is 18.

What are the difference between atomic number and atomic mass ?

Atomic mass can be defined as the total number of neutrons and protons located in nucleus of an element while atomic number is the number of protons present in the nucleus of element.

Atomic mass can be defined as the average weight of an element where as the atomic number is the total number of protons present in the nucleus; Atomic mass have the  symbol A while atomic number have the symbol the letter Z.

Different isotopes of an element are differentiated by atomic mass is while isotopes share the same atomic number, in neutral atom protons and electrons are equal to atomic number or proton number is 18 and electrons are also 18

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For the compound butane (C4H10)

a) What are the elements in the compound?

b) What are the number of atoms of each element?

c) What are the total number of atoms per molecule?

Answers

I think b not sure though
A. Carbon and Hydrogen.
B. Carbon: 6 Hydrogen: 1
C. 34

How many liters will 90.0 grams of xenon gas (Xe) occupy at STP?

HELP PLEASE

Answers

Answer:

22.4L

Explanation:

not sure if its totally correct but I tried

What is true of both galvanic and electrolytic cells?
A. Reduction happens at the cathode.
B. They are spontaneous. .
C. They are nonspontaneous.
D. Oxidation happens at the cathode.​

Answers

Answer:

reduction happens at the cathode

Explanation:

Just took the test.

Reduction happens at the cathode. Hence, option A is correct.

What is an electrolytic cell?

An electrolytic cell converts electrical energy into chemical energy or vice versa.

Oxidation-reduction reactions are balanced by two half overall chemical equations into an oxidation equation and a reduction equation.

Hence, reduction happens at the cathode in both galvanic and electrolytic cells.

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What is an example for "chemical equations"?

Answers

Answer:

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side.

Explanation:

Explain why the following structure is incorrect

Answers

Answer:

there is too many electrons around the shell

Explanation:

Carbon atoms must bond with 4 other atoms in this structure one of the carbons only has 3 bonds with the other atoms.
Oxygen has to bond to two other atoms so the C-O bond should be a double bond to fulfil both of their bonding rules.
Hydrogen can only bond to one other atom, therefore it cannot make a double bond so that bond must be a single bond. (Carbon there is also bonding to five atoms so changing it to a single bond will fulfil both of their bonding rules).
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