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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Nitrogen has 5 electrons in its valence shell. How many more electrons will it likely gain? As a result, what charge will the Nitrogen in the above problem have?
Answer: 3 electrons; charge = -3
Explanation:
Nitrogen will likely gain 3 electrons.
Nitrogen will therefore carry a charge of -3. (since gaining electrons causes a negative charge.
what are the intervals on the fahrenheit scale called
Fahrenheit temperature scale fâr´ənhīt˝ [key], temperature scale in which the temperature difference between two reference temperatures, the melting and boiling points of water, is divided into 180 equal intervals called degrees.
Identify the cells in interphase, prophase, metaphase, anaphase, and telophase by circling the cells.
Answer: See diagram below
Explanation
Interphase- cell prepares to divide
Prophase- nucleolus disappears and chromosomes shorten
Metaphase- chromosome lines up in the center
Anapahase- chromatids are pulled apart to opposite poles
Telophase- cell about to/is divided into two
Ned help with this question
If a piece of metal has a density of 9.865 g and a volume of 14 ml, what is its mass?
Answer:
I think the answer is 138.11 gram
Explanation:
a model of an atom shows eight electrons in rings that represent different energy levels. how many electrons are in each energy level?
Answer:
1. four in the first energy level, four in the second energy level
2. eight in the first energy level, zero in the second energy level
3. zero in the first energy level, eight in the second energy level
4. two in the first energy level, six in the second energy level *
Explanation:
1. four in the first energy level, four in the second energy level
2. eight in the first energy level, zero in the second energy level
3. zero in the first energy level, eight in the second energy level
4. two in the first energy level, six in the second energy level *
What do these two changes have in common?
boiling an egg
bleaching hair
Select all that apply.
Answer:
destruction of protein bonds
Explanation:
bleach dyes the hair by opening the hair cuticle and dissolving the color (melanin). The longer you leave it on, the more the protein bonds (keratin) are destroyed.
The heat denatures the protein in the egg by disrupting some of its weak bonds that held the molecule into shape
What resources are sometimes shared by squirrels and certain birds answer quick I need to get to the bus stop!!
Answer:
I know someone that has the answer
Explanation:
I know someone that has the answer
Nitrogen makes up ________ of our atmosphere??? will mark Brainliest
Solve for the Gradient AB. The units will be in m/km but you should not
leave units in the answer because the answer key will not take them. Write
the answer to the tenths place and no units.
.X
B
Lake
-100
Blue River
50
А
D
5 kilometers
Contour interval 10 meters
N
0
2
3
5 kilometers
Answer:
help me mark me as a brinliest
what is the maximum wavelength of photon that will eject a ground state electron from a hydrogen atom?
Answer:
9.13 x 10^-8 m
Explanation:
The maximum wavelength of photon that will eject a ground state electron from a hydrogen atom is 9.18 * 10^-8.
What is wavelength?
Wavelength is defined as the distance between identical points in the adjacent cycle of a waveform signal propagated in space or along the wires.
Wavelength is calculated as wave speed and frequency.
Wavelength = speed/frequency
SI unit of wavelength is meter.
A ground state atom is an atom in which total energy of the electron can not be lowered by transferring one or more electrons to different orbitals.
Thus, the maximum wavelength of photon that will eject a ground state electron from a hydrogen atom is 9.18 * 10^-8.
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according to the periodic table, which element is a noble gas?
Answer:
Argon, neon, krypton, Xenon, Radon and Organesson
What is sliver?
[tex]silver[/tex]
Chemical element
Silver is a chemical element with the symbol Ag (from the Latin argentum, derived from the Proto-Indo-European h₂erǵ: "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal.
Explanation:
Silver is a chemical element with the symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal.
Land can also be called
A) Money and/or profit
B) Natural Resources
C) Human Resources
Answer:
B) Natural resource
Explanation:
Answer:
B
Explanation:
Because it is always there
what does temperature measure
Answer:
Average kinetic energy that's the answer
Answer:
hotness or coldness
.....................
the kinetic theory of matter explores the spatial relationship between the particles of solids liquids and gases , which of the following processes causes the distance between particles to increase the most?
A-Melting
B-Freezing
C-Sublimation
D-condensation
ADVANTAGES AND DISADVANATAGES oF genectic enginerring
Advantages of Genetic Engineering?
1. It allows for a faster growth rate.
2. It can create an extended life.
3. Specific traits can be developed.
Plants and animals can have specific traits developed through genetic engineering that can make them more attractive to use or consumption. Different colors can be created to produce a wider range of produce. Animals can be modified to produce more milk, grow more muscle tissue, or produce different coats so that a wider range of fabrics can be created.
4. New products can be created.
5. Greater yields can be produced.
Genetic engineering can also change the traits of plants or animals so that they produce greater yields per plant. More fruits can be produced per tree, which creates a greater food supply and more profits for a farmer. It also creates the potential for using modified organisms in multiple ways because there is a greater yield available. Modified corn, for example, can be used for specific purposes, such as animal feed, ethanol, or larger cobs for human consumption.
6. Risks to the local water supply are reduced.
Because farmers and growers do not need to apply as many pesticides or herbicides to their croplands due to genetic engineering, fewer applications to the soil need to occur. This protects the local watershed and reduces the risk of an adverse event occurring without risking the yield and profitability that is needed.
7. It is a scientific practice that has been in place for millennia.
Humans in the past may not have been able to directly modify the DNA of a plant or animal in a laboratory, but they still practiced genetic engineering through selective breeding and cross-species or cross-breeding. People would identify specific traits, seek out other plants or animals that had similar traits, and then breed them together to create a specific result. Genetic engineering just speeds up this process and can predict an outcome with greater regularity.
What Are the Disadvantages of Genetic Engineering?
1. The nutritional value of foods can be less.
When animals grow, and mature quickly, the nutritional value of that product can be reduced. This can be seen in poultry products today with the white striping that is found in meat products. That striping is a fat deposit that was created, often in the breast meat, because of the rapid growth of the bird. In chickens, Good Housekeeping reports that this can increase the fat content of the meat consumed by over 220%. At the same time, the amount of protein that is received is also reduced.
2. Pathogens adapt to the new genetic profiles.
Genetic engineering can create a natural resistance against certain pathogens for plants and animals, but the natural evolutionary process is geared toward creating pathways. Bacteria and viruses evolve a resistance to the resistance that is created by the genetic engineering efforts. This causes the pathogens to become stronger and more resistant than they normally would be, potentially creating future health concerns that are unforeseen.
3. There can be negative side effects that are unexpected.
Genetic engineering is guaranteed to make a change. Many of those changes are positive, creating more and healthier foods. Some of those changes, however, can be negative and unexpected. Making a plant become more tolerant to drought might also make that plant become less tolerant to direct sunlight. Animals may be modified to produce more milk, but have a shortened lifespan at the same time so farmers suffer a greater livestock.
4. The amount of diversity developed can be less favorable.
At some point, genetically engineered plants and animals make it “into the wild” and interact with domestic species. This results in a crossing of “natural” and “artificial” organisms. The engineered organisms often dominate, resulting in only a modified species over several generations, reducing the diversity that is available.
5. Copyrighted genetic engineering can have costly consequences.
Many companies copyright their genetic engineering processes or products to maintain their profitability. If a farmer plants genetically modified crops and the pollination process causes another farmer in the field over to have those modified crops grow, there have been precedents for legal actions against the “unauthorized” farmer. This can have several costly consequences, from fewer farmers wanting to work to a higher cost for the seeds that are planted.
6. This knowledge and technology can be easily abused.
At the moment, genetic engineering in humans is being used to treat specific disorders that threaten the health or wellbeing of individuals. In time, the approach in humans could be like what is already being done with plants and animals. Genetic engineering can change specific traits, which could create human outcomes that are ethically questionable or easily abused.
what should be done if a spectrophotometer reports an absorbance that is too high?
a) What is the role of neutrons in an atom?
b) How do we determine how many neutrons are in an atom?
Answer:
numer 1:Neutrons are required for the stability of nuclei, with the exception of the single-proton hydrogen nucleus. Neutrons are produced copiously in nuclear fission and fusion. They are a primary contributor to the nucleosynthesis of chemical elements within stars through fission, fusion, and neutron capture processes.
number 2:The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).let me know if i helped
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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?
For the following element, predict the most likely oxidation number (charge) for its corresponding ion.
Aluminum
A. Al+3
B. Al+1
C. Al-3
D. Al-1
The most likely ion of Aluminum is Al³⁺ (group 3A) since losing three electrons is the most energetically favorable way for it to follow the octet rule.
Because the charge on ions is equivalent to their oxidation state, then +3 is the most likely oxidation number of Aluminum.
PLEASE HELP!!!
Most lakes have rivers flowing out of them, carrying water to the ocean. However, some
lakes, including Great Salt Lake and the Dead Sea, have no outlet. Water flowing into
these lakes leaves only through evaporation. Considering that the water flowing into the
lakes contains many dissolved substances, how does the lack of an outlet affect the
composition of these lakes? What would you expect to happen after many more years
of inflow and evaporation?
Answer:
I feel like it could lead to flooding
the elements in the far upper right corner are classified as
Helium is classified as a(n)?
O alkaline earth metal
O alkali metal
O transition metal
O noble gas
Answer:
NOBLE GAS
Explanation:
Look At The Table Of Elements
Write an equation of a line parallel to y=3x-1 passing through the point (0,3).
Answer:
wow never heard the question
Write Cadmium nitride formula using criss cross method
Explanation:
For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.
Here calcium is having an oxidation state of +2 called as Ca^{2+}Ca2+ cation and NO_3^{-}NO3− is a polyatomic anion with oxidation state of -1.. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral Ca(NO_3)_2Ca(NO3)2
Someone pls help me I will make you brain
Answer:
c
Explanation:
II and III
I NEED OXIDATION AND REDUCED FOR BOTH ASAP PLS HELP (make sure its correct)
Please tel me the answer I will mark you brainliest
2 is the answer
Explanation:
the other answers are all included in the cell theory
pls help i need the Formula
how can you calculate the number of electrons present in a shell? pls help!!! will give brainliest
Answer:
The maximum number of electrons present in a particular shell is calculated by the formula 2n2, where “n” represents the shell number. For instance, K shell is the first shell and it can hold up to 2(1)2 = 2 electrons. Similarly, L shell is the second shell and it can hold up to 2(2).