How many grams of Fe can be produced when 6.10 g of Fe2O3 reacts?
As per the balanced reaction, two moles or 319.4 g of Fe₂O₃ gives 4 moles or 223.4 g of Fe. Thus 6.10 g gives 4.22 g of Fe.
What is ferric oxide?
Ferric oxide is an ionic compound formed from iron and oxygen in which iron is in +3 oxidation state. It is also called iron oxide which decomposes to form molecular oxygen and iron.
The balanced equation giving Fe and oxygen from ferric oxide is written below:
[tex]\rm 2Fe_{2}O_{3} \rightarrow 4Fe + 3O_{2}[/tex].
The molar mass of ferric oxide is 159.7 g/mol. Thus two moles weighs 159.7 × 2 = 319.4 g. Atomic mass of Fe is 55.85 hence, 4 moles is 223.4 g.
As per the balanced reaction, 319.4 g of ferric oxide gives 223.4 g of iron. Thus mass of iron , Fe produced from 6.10 g of ferric oxide is calculated as follows:
mass of Fe = (223.4× 6.10 ) /319.4
= 4.226 g
Hence, 4.22 g of Fe will be produced from 6.10 g of Fe₂O₃.
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Ned help with this question
Answer:
135.6
Explanation:
12 * 11.3 = 135.6
To find the mass you have to multiply the density and volume together
If you already have the mass you divide the mass by either the density or volume
The atomic number of an element is 10, which element does this atom represent?
Answer:
Neon
Explanation:
Neon is the Group 18 element.It is a nobel gas.electronic configuration is given by[tex]\\ \sf\longmapsto [Ne]=1s^22s^22p^6[/tex]
Answer:
Name: Neon
Formular: Ne
Explanation:
[tex].[/tex]
If an atom has 4 protons and 2 electrons its charge will be:
Answer:
It's charge will be positive
Explanation:
4>2
15). A covalent chemical bond is one in which A) electrons are removed from one atom and transferred to another atom so that the two atoms become oppositely charged. B) protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms. C) outer-shell electrons of two atoms are shared so as to satisfactorily fill the outer electron shells of both atoms. D) outer-shell electrons of one atom are transferred to the inner electron shells of another atom. E) the inner-shell electrons of one atom are transferred to the outer shell of another atom.
Answer:
B) protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms
When the temperature of the air in a hot air ballon increases, what happens to the volume of the gas?
Answer:
As the temperature increases, the gas particles absorb more heat energy. They speed up and move farther away from one another. So the increase in temperature causes an increase in volume. (Boyles Law)
Polonium has a mass number of 212 and an atomic number of 84. In a balanced nuclear reaction, polonium releases an alpha particle to produce lead. Which option is the atomic number of lead?(1 point)
210
208
80
82
plss help
right answer only
Answer:
D. 82
Explanation:
Answer:
see below
Explanation:
1. 138
2. the conversion of an atom of one element into a different element through nuclear changes
3. A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the total mass before and after the change.
4. 82
5. Some of the matter is converted to energy.
[quizlet: captncrun]
which solids will melt under applied pressure? check all that apply.
According to the forces of attraction , ice is a solid which will melt under applied pressure.
What are the forces of attraction?
Forces of attraction is a force by which atoms in a molecule combine. it is basically an attractive force in nature. It can act between an ion and an atom as well.It varies for different states of matter that is solids, liquids and gases.
The forces of attraction are maximum in solids as the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.
The physical properties such as melting point, boiling point, density are all dependent on forces of attraction which exists in the substances.
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Is hot tea a substance or a mixture
Answer:
IS A SUBSTANCE AND MIXTURE
(WILL GIVE BRAINLESS)Throwing a paper airplane through the air is an example of A. fluid friction B. sliding friction C. rolling friction D. solid friction
Answer:
sliding friction
Explanation:
Answer:
D. solid friction
Explanation:
Its not a fluid, Its not sliding, and its not rolling, so therefor is solid friction
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Anna nating Comprehension Guest
5. Which statement best describes the central idea of this passage?
A. In 2004, a tsunami killed thousands of people in South Asia and East Africa.
B. Animals started to behave strangely before the tsunami struck.
C. Many animals survived the tsunami because they sensed it coming
D. Animals have better senses of hearing, smell, and sight than humans do.
Which one?
PLEASE HURRY AND TELL ME THE ANWERS
Answer:
Explanation:
Help me pls I will mark you as brain
A 1,500-kilogram car travelling at 10 meters per second (about 22 mph) strikes a parked car on the side of the road. If the car comes to a stop in half of a second, what force is exerted on the parked car by the moving car?
The force exerted on the parked car by the moving car is –30000 N
To solve this question, we'll begin by calculating the deceleration of the moving car. This can be obtained as follow:
Initial velocity (u) = 10 m/s
Final velocity (v) = 0 m/s
Time (t) = 0.5 s
Deceleration (a) =?[tex]a = \frac{v - u}{t} \\\\ a = \frac{0 - 10}{0.5}\\\\a = \frac{- 10}{0.5}[/tex]
a = - 20 m/sFinally, we shall determine the force exerted by the moving car on the parked car. This can be obtained as follow:
Mass of moving car (m) = 1500 Kg
Acceleration (a) = - 20 m/s
Force (F) =.?F = ma
F = 1500 × (-20)
F = -30000 NNOTE: The negative sign indicate force is in opposite direction to the parked car.
Therefore, the force exerted on the parked car by the moving car is –30000 N
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The stratosphere is cold except in its upper regions where _____ is located.
Question 6 options:
Oxygen
ozone
space
Nitrogen
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The stratosphere is cold except in its upper regions where Ozone is located.
Fill in the blanks
a. Silica gel is used as …………… .
b. The ………. distillation is used to obtain petroleum products from crude oil.
c. Chromatography is used to separate………… .
d. Liebig’s condenser is used in ………… .
e. Plant pigment can be separated by …………… .
Answer:
a:It is used as a moisturizer
b:Paraffin
c:Dissolve substances
d:Chemical distillation
e:Paper chromatography
Your teacher has just asked you to measure out 1.24 x 1023 molecules of sodium chloride, Sodium chloride has a chemical formula of Naci. Using a Periodic Table,
determine how many grams of sodium chloride you should measure out.
A 12.08
2.12 x 1028
284 g
D 72.5 x 1021 g
Answer:
A)
Explanation:
Write each formula to solve for density, volume and mass.
What are two or more atoms linked/bonded together called?
Answer:
Molecule
Explanation:
Two or more atoms linked/bonded together is called a molecule.
List some things that help with heat generation. What do you use everyday that helps with heat generation?
Answer: A toaster
Explanation: A toaster is an house held item that is used for heating and toasting bread and other stuff.
Suppose it takes 5 minutes for half of your sample to radioactively decay. If you started with 80 atoms, and have only 5 radioactive atoms left, how many half-lives have occurred?
what does the bottom layer represent?
Answer:
A blanket
Explanation:
bottom layer is a nice comfy blanket you could use to sleep with
Explanation:
Something comfy you can use for yourself or others.
who is generally called the father of modern chemistry
Explanation:
Antoine Lavoisier is the answer
Answer:
Antoine Lavoisier is the father of chemistry
Explanation:
Antoine-Laurent de Lavoisier, also Antoine Lavoisier after the French Revolution, was a French nobleman and chemist who was central to the 18th-century chemical revolution and who had a large influence on both the history of chemistry and the history of biology.
Witch zone contains plenty of sunlight for photosynthesis
Answer:
well maybe it is open ocean (or the euphotic zone, witch is not an answer choice)
Explanation:
The top zone is the euphotic or sunlit zone. This is the ocean zone that sunlight penetrates. Because this zone gets sunlight, photosynthesis can occur and plants can grow here. The sunlit zone goes down to about 660 feet.
Is fresh squeezed lemonade a homogeneous or heterogeneous mixture
Answer: This makes the lemonade a homogenous mixture
Explanation:
If the freshly squeezed lemonade is made by squeezing lemons to extract the sour juice and mixing this with water and sugar all the substances in the mixture finally created are in the same phase.
- ¿Qué otros materiales de tu entorno podrías utilizar que te permita mejorar tu filtrador de agua?
Suelo, grava, bolas de algodón, material de desecho, carbón, arena y astillas de madera.
El suelo, la grava, las bolas de algodón, los desechos, el carbón, la arena y las astillas de madera son materiales extraídos del medio ambiente que nos permiten mejorar la filtración del agua porque estos materiales filtran partículas y otras impurezas del agua y la hacen potable.
La arena y la grava se consideran buenos filtros de agua porque forman capas permeables que filtran el agua. El agua puede pasar lentamente a través de estas capas permeables y la mayoría de las partículas de suciedad quedan atrapadas, por lo que podemos concluir que los materiales anteriores se pueden utilizar como filtros de agua.
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What is a compound?
a combination of two or more substances that are not chemically combined
a combination of two or more elements that are combined in a certain ratio
Answer:
a combination of two or more elements that are combined in a certain ratio
Explanation:
A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.
Which things below would help make an ecosystem more biodiverse? O Having a very large population of a species O Having a large community of organisms O Lots of different traits in a species Not having seasons
how many protons does boron-11 atom have
Answer:
5
Explanation:
Which of the following is an element?
O CuO
O Na
OCH4
H20
Explanation:
na is element
others are compounds