what is the empirical formula of a compound that contains only iron and oxygen and is 22.27% oxygen?

Answers

Answer 1

Answer:

A) FeO

Explanation:

Options:

A) FeO

B) FeO2

C) Fe2O

D) Fe7O2

The correct answer is A) FeO.

(Hope this helps can I pls have brainlist (crown)☺️)

Answer 2

The empirical formula of a compound that contains only iron and oxygen and is 22.27% oxygen is FeO. The correct option is A.

What is the empirical formula?

The simplest whole number ratio of atoms in a chemical molecule is its empirical formula. The empirical formula is the chemical formula that gives the number of atoms of the chemical formula that is given in the chemical reaction.

For example, the C₆H₁₂O₆ is the formula of glucose. The simplest formula is CH₂O. This will be the simplest ratio of this compound. The first one, this C₆H₁₂O₆ is the molecular formula.

It only contains the element one quantity.  The empirical formula that contains oxygen and iron will be FeO. The empirical formulas is calculated by dividing the simplest formula.

Thus, the correct option is A) FeO.

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The question is incomplete. Your most probably complete question is given below:

A) FeO

B) FeO2

C) Fe2O

D) Fe7O2


Related Questions

Question 5
The energy produced by a generator can BEST be described as

A thermal

B chemical

C nuclear

D kinetic

E electrical

Answers

Answer:

E- Electrical

Explanation:

It converts mechanical energy to electrical energy

Answer:

D kinetic

The generator in turn converts the kinetic energy of the rotor to electrical energy.

Hope it helped


which of the following are examples of extensive properties?

Answers

Answer:

Mass, volume, width, height, etc.

Explanation:

Extensive properties depend on the amount of material where intensive properties (color, luster, taste, odor, density, temperature, melting/boiling point) don't.

. Describe the differences and similarities between the molecules of carbon monoxide, diatomic oxygen and carbon dioxide. Which two appear most alike?

Answers

Explanation:

Though both the molecules contain carbon and oxygen, the general difference between them lies in their number of oxygen of atoms carried by them; as carbon dioxide (CO2) has one carbon atom and two oxygen atoms, while carbon monoxide (CO) has one carbon and one oxygen atom.

Carbon Dioxide is naturally present in our atmosphere and as it is excreted out during the process breathing by the animals and humans. On the other hand, Carbon Monoxide is toxic, and it produces suffocation if it builds while incomplete combustion of coal, fossil fuels, etc.

In the layman language, both the terms are sometimes used interchangeably and create confusion. As they have few similarities and incorporates carbon and oxygen as well, and are the byproducts of the things which carry carbon like fuels, coals, woods, and natural gas.

We all are aware of the three states of matter, which are Solid, Liquid and Gas. In this context, we will be discussing the two most common gases present in our atmosphere, how they vary from each other, their effects and their similarities. These gases are Carbon Dioxide and Carbon Monoxide.

Answer:

The major similarities between molecules of carbon monoxide, diatomic oxygen and carbon dioxide is that they all exist in gaseous states in their natural forms. Each of them also have low molecular weight of less than 70g/mol.

The difference between them is that the carbon monoxide is formed from incomplete combustion and is a toxic gas while carbon dioxide is an end product of respiration and is used by plants for photosynthesis. Oxygen on the other hand is essential for respiration and is the end product of photosynthesis.

Carbon dioxide and Carbon monoxide look most alike as they have the same elements which include Carbon and Oxygen but only different in the number of atom composition

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This atom tends to gain an electron in its outer shell so that there are a total of 8 electrons.

Answers

oh its a Chlorine isn't it....

it's electronic configuration is

2,8,7

so to make it 8 in its outermost shell it should gain 1 electron...

Someone pls help me I will make you brain

Answers

Answer:

I would go with the first option. It shows how people having been releasing more and more carbon dioxide into the atmosphere.

Explanation:

What happens to the wavelength and frequency of light as you move from red to violet?

A. Both wavelength and frequency increases.
B. Both wavelength and frequency decreases.
C. Wavelength decreases and frequency increases.
D. Wavelength increases and frequency decreases.

Answers

C….. if you need a diagram to see

Someone pls help me I will make you brain

Answers

Answer:

I believe your answer is B.) I hope this helps.

Is it _________
To view _______ eclipse without eve protection.
A.Unsafe, lunar
B.Safe, solar
C.Unsafe, solar
D.Unsafe new moon

Answers

Answer:

unsafe, solar

Explanation:

A lunar eclipse covers the moon which is safe to look at. New Moon, again is simply the moon. However, we should never look at the sun, eclipsed or not!

Answer:

C, it is unsafe to view solar

without eye protection

Someone pls help me I will make you brain

Answers

Answer:

lll and ll

Explanation:

Which terrestrial ecosystem is characterized by almost no rainfall, very hot days, and very cold nights?
A. Tundra
B. Temperate forest
C. Desert
D. Grassland ​

Answers

B. Temperate Forest is the answer
Answer:
B. Temperature forest

what is a chemical reaction of sulfric acid?

Answers

Sulfuric acid reacts violently with alcohol and water to release heat. It reacts with most metals, particularly when diluted with water, to form flammable hydrogen gas, which may create an explosion hazard. ... Hazardous decomposition products are as follows: sulfur dioxide, sulfur trioxide, and sulfuric acid fumes.

it acts violently with water or alcohol to release some heat, it does react to most metals, mostly when diluted with water to form flammable hydrogen gases, which may create an explosion hazard.

(i tried to make the g00gle answer less complicated) :)

What is the range of valence electrons that metals have?

Answers

Metals have 1-3 electrons


14-Los
ojos
brillantes
Platero copian todo el
Y vivos de
paisaje de
Sol y de lluvia es simil o personificación o metáfora o gustativa

Answers

El fragmento es un ejemplo de metáfora porque presenta la relación entre la idea de los ojos de Platero con el clima soleado y lluvioso.

Metáfora es un término de origen griego que se refiere a la acción de traslación. En el lenguaje, una metáfora es una figura retórica que consiste en la asignación de un concepto o expresión a una idea sin que esta se relaciones directamente con esta definición.

De acuerdo a lo anterior, en el fragmento se presenta una metáfora en la que se relacionan los ojos de Platero con las horas de sol y lluvia.

Nota: Esta pregunta está incompleta porque el fragmento está incompleta. Aquí está el fragmento completo.

Los ojos brillantes y vivos de Platero copian toda la hora de sol y lluvia en cuyo ocaso, sobre el campo de San Juan, se ve llover, deshilachada, otra nube rosa.

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Since sodium chloride is classified as a compound, a sample of it contains
A. atoms that are gases, liquids, and solids.
O
B. more than one kind of atom.
C. matter that cannot be reduced to atoms.
O
D. a solution of atoms and molecules.

Answers

Answer:

more than one kind of atom. a solution of atoms and molecules.​

Explanation:

a compound always contains more than one type of atom.

Although the formula for sodium chloride is NaCl, the compound does not contain actual NaCl molecules. Rather, it contains equal numbers of sodium ions with a charge of positive one (Na+) and chloride ions with a charge of negative one (Cl−).

How many grams are in 2.5 moles of dicarbon hexahydride?
Round to 2 significant figures!

Answers

There are 75 grams in 2.5 moles of dicarbon hexahydride (C₂H₆).

The given parameters;

dicarbon hexahydride = [tex]C_2H_6[/tex] number of moles of the dicarbon hexahydride = 2.5 moles

The molecular mass of dicarbon hexahydride is calculated as follows;

Mw = C₂H₆ = (2 x 12) + (6 x 1)

Mw =30 g/mol

The mass of the dicarbon hexahydride in the given number of moles is calculated as follows;

mass = n x Mw

mass = 2.5 x 30

mass = 75 g

Thus, we can conclude that there are 75 grams in 2.5 moles of dicarbon hexahydride (C₂H₆).

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What is the most abundant type of protein in egg white? What do you think its purpose is?​

Answers

Answer: Ovalbumin (Albumin)

Explanation:

The albumen (egg white) is composed of almost 60% of the protein ovalbumin. It's the main source of proteins for tissue synthesis in the embryo. It acts as a storage protein, storing ions and amino acids necessary for embryonic development.

There are four different proteins present in egg white. In which the most abundant protein is ovalbumin present in 54 %.  

What are proteins?

Proteins are biomolecules very essential for life. Proteins are made of a number of amino acids.  Amino acids join together to form peptides and large number of peptides constitute a protein.

Essential amino acids have to be up taken from diet and non-essential will be produced inside the body.

Proteins are the major substances to build up our body. There are essential and non essential amino acids. Nails and hair are made of keratin protein. Milk contains the protein called lactine.

Similarly the protein in curd is casein. The proteins in egg white are ovalbumin, ovotransferrin, ovomucin and ovomucoid. In which ovalbumin is most abundant.

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If you were to mass the reactants before a reaction and then mass the products after the reaction what would you expect to find and why?


pls answer fast ill give brainliest!

Answers

Answer:

No change...

Explanation:

The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it first reacted. So the mass of the product equals the mass of the reactant.

Mark as Brainliest please...

Where do most metabolic reactions occur?
all of the above
O plasma membranes
O nucleus
O cytoplasm

Answers

The answer is cytoplasm. Give me brainliest, I answered like 2 of your questions lol.

Answer:

CYTOPLASM

Explanation:

MOST REACTION REQUIRE WATER TO OCCUR

SINCE ENZYME WORK BEST WHEN DISSOLVED IN WATER

WATER IS PRESENT IN CYTPLASM HENCE IT IS MAIN SITE OF MEABLIC REACTIONS

Use the diagram to identify each item.

Answers

Explanation:

atomic no. is 42

chemical symbol is Mo

no. of protons is 42

atomic mass is 95.95

no. of electrons is 42

no. of electron in outer most shell is 1

no of electrons in the n 3 shell is 18

no. of neutron is 96

The element molybdenum is 42nd element in periodic table with the symbol Mo and  a mass of 96. It have 42 electrons and 42 protons.

What is Molybdenum?

Molybdenum (Mo) is a transition metal in periodic table included in the d-block. The atomic number of molybdenum is 42 which is the number of protons and electrons in it.

The atomic number of a neutral atom is equal to the number of electrons in it. For a neutral atom the number of electrons and protons are equal and thus the number of both electrons and protons in Mo is 42.

Mass number is the sum of number protons and neutrons in an atom. The mass number of Mo is 96 and number of protons is 42. Thus, the number of neutrons is 96 -42 = 54.

The outer shells of Mo are 4d and 5s containing 4 and 2 electrons respectively. Thus the number of outer electrons is 6.The level n= 3 is M shell which contains 18 electrons for Mo.

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Which of the operations results in sublimation?​

Answers

Answer:

hrjfnd

Explanation:

hfhdhfujduejdjdjdbfudbdjdbdifhdudjdufb

how do anion formation and valence electrons relate?

Answers

Answer:

A cation is formed when a metal ion loses a valence electron while an anion is formed when a non-metal gains a valence electron. They both achieve a more stable electronic configuration through this exchange.

Answer:

A cation is formed when a metal ion loses a valence electron while an anion is formed when a non-metal gains a valence electron. They both achieve a more stable electronic configuration through this exchange.

Explanation:

Hope I helped!

Select the answer that completes each statement.

The
founded the Virginia colony.

The
government took over the Virginia colony because too many colonists had died.


and
worked on the tobacco plantations.

The
was the first elective governing body in a British colony.

Answers

Answer:

1 colonists

2 England

3 slaves

4 the House of Burgesses

Answer:

:)

Explanation:

a 200 g of sugar was dissolved in 100 ml of water describe the solution

A.diluted
B.concentrated
C. sweet
D. very sweet

................... answer.........pls........

Answers

Answer:

b

Explanation:

mark me as brainliest have a great day

viết pthh xảy ra khi oxi phản ứng với kim loại K, Mg, Al

Answers

Answer:

nnnnnnnnnnnnnnnnnnnnnn

Explanation:

jhhhhhhhhhhhhhhhhbhhhh

which word best describes a substance where its atoms and molecules are moving very fast?

Answers

Answer:

solids

Explanation:

because in ice for instance the molecules and atoms are shivering so the move fast to stay warm

What describes a chemical reaction?

Answers

Answer:

A chemical reaction is a process where two different substances or elements are mixed together. They then undergo some sort of chemical change to become a different substance altogether.

Explanation:

Find the number of protons, neutrons, and electrons for hydrogen-1, hydrogen-2, and hydrogen-3 respectively.

Answers

Answer:

Protons Neutron Electrons

hydrogen-1 1 0 1

hydrogen-2 1 1 1

hydrogen-3 1 2 1

Explanation:

hydrogen-1, hydrogen-2, and hydrogen-3 are all isotopes.

Isotopes have the same number of protons but a varying number of neutrons. Protons = Electrons.

the reaction of zinc metal and hydrochloric acid produces hydrogen gas and zinc chloride. true or false?

Answers

Answer:

true.

Explanation:

Zn(s) + 2HCI(aq)=H2(g)+ZnCl2(g)

Hi! I could use some help, I need to turn this in today

Each of these Ionic Compounds are named INCORRECTLY.

1. Find and describe the mistake
2. Correctly name the compound.

CaCl2 - Calcium Chlorine

CuS - Copper Sulfide

Li3P - Trilithium Phosphide

CuBr - Copper(II) Bromide

NaOH - Sodium Hydrogen Oxide

Answers

Explanation:

The nomenclature of ionic compounds is given by:

1. Positive is written first.  And if the metal atom has various oxidation states then its oxidation state is to be mentioned in brackets with help of roman numbers

2. The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.

1.)  : Calcium chloride  (Correct)

In the given compound, calcium has oxidation state of +2 and chlorine has oxidation state of -1.The name is correct.

2.)  : Copper (II) oxide   (Incorrect)

In the given compound,copper has the oxidation state of +1 and oxygen has oxidation state of -2.So ,the correct name will be Copper (I) oxide.

3.)  : Lead (II) sulfide   (Incorrect)

In the given compound, lead has the oxidation state of +4 and sulfur has oxidation state of -2. So ,the correct name will be Lead (IV) sulfide.

Look at the image shown.

Two H are written with a horizontal straight line between them. (H-H)

What does this image represent?

Linear molecule with one domain
Linear molecule with two domains
Tetrahedral molecule with four domains
Trigonal planar molecule with three domains

Answers

Explanation:

It is known that an electron pair represents a domain. Hybridization of BF_{3}BF3 will be calculated as follows.

       Hybridization = \frac{1}{2}[\text{Valence electrons of central atom + no. of bonded atoms + negative charge - positive charge}]21[Valence electrons of central atom + no. of bonded atoms + negative charge - positive charge]

Valence electrons of boron are 3 and no. of bonded atoms in a BF_{3}BF3 molecule is 3.

Therefore, calculate hybridization of BF_{3}BF3 as follows.

          Hybridization = \frac{1}{2}[\text{Valence electrons of central atom + no. of bonded atoms + negative charge - positive charge}]21[Valence electrons of central atom + no. of bonded atoms + negative charge - positive charge]

                              = \frac{1}{2}[3 + 3 + 0]21[3+3+0]

                               = 3

Hence, hybridization of BF_{3}BF3 is sp^{2}sp2 , that is, trigonal planar.

Thus, we can conclude that the given image represents that it is a trigonal planar molecule with three domains.        

Answer:

electron pair => 1 covalent bond => same as H:H

Explanation:

The bar notation is generally accepted as a pair of electrons depicting a 'single' chemical bond. If two bars are shown (e.g; C=C) then two chemical bonds are represented. If three bars are shown (e.g; N≡N) then three chemical bonds are represented. This is the highest number of bonds that can exist between two elements. Hope this helps. :-)

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