In ferromagnetic materials, smaller groups of atoms band together into areas called domains, in which all the electrons have the same magnetic orientation. That's why you can magnetize them.
What is the meaning of magnetic domains?A portion of a ferromagnetic material where the magnetic moments are aligned with one another because of interactions between molecules or atoms.
In ferromagnetic materials, the atoms form structures called domains.
A domain is a region inside of a material where groups of magnetic moments naturally align in the same direction.
There can be numerous domains within an object.
Learn more about magnetic domains here:
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Describe the energy in nuclear fuel and the way in which it’s converted to electrical energy. Write 50 to 100 words.
Explanation:
You will have to rewrite this in your own words please. Download the app Paraphrase and also download Plagiarism Checker. Go on Paraphrase first and write it out then go to Plagiarism second and it'll tell you if you still need to reword it.
Answer:
A nuclear reactor produces electricity in much the same way other power plants do. The chain reaction produces the energy, which turns water into steam. The pressure of the steam turns a generator, which produces electricity.
Explanation:
Nuclear energy originates from the splitting of uranium atoms a process called fission. In nuclear fission, atoms are split apart to form smaller atoms, releasing energy. Fission takes place inside the reactor of a nuclear power plant. At the center of the reactor is the core, which contains uranium fuel. The uranium fuel is formed into ceramic pellets. Inside each uranium fuel pellet, there are millions of uranium nuclei. When these nuclei are split, a huge amount of energy is released. Some of this energy is from radiation, but the biggest source is kinetic energy. This is the energy that produces heat inside a reactor. The heat produced during nuclear fission in the reactor core is used to boil water into steam, which turns the blades of a steam turbine. As the turbine blades turn, they drive generators that make electricity. Nuclear plants cool the steam back into water in a separate structure at the power plant called a cooling tower, or they use water from ponds, rivers, or the ocean. The cooled water is then reused to produce steam.
A gas confined in a 515cm3 container exerts a pressure of 107.4kPa at 38.6⁰C. At what Celsius temperature will it exert a pressure of 635.7kPa if it is placed into a 644cm3 container?
Answer: The temperature at pressure of 635.7 kPa is [tex]2033^0C[/tex]
Explanation:
The combined gas equation is,
[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]
where,
[tex]P_1[/tex] = initial pressure of gas = 107.4 kPa
[tex]P_2[/tex] = final pressure of gas = 635.7 kPa
[tex]V_1[/tex] = initial volume of gas = [tex]515cm^3[/tex]
[tex]V_2[/tex] = final volume of gas = [tex]644cm^3[/tex]
[tex]T_1[/tex] = initial temperature of gas = [tex]38.6^0C=(38.6+273)K=311.6K[/tex]
= final temperature of gas = ?
Now put all the given values in the above equation, we get:
[tex]\frac{107.4\times 515}{311.6}=\frac{635.7\times 644}{T_2}[/tex]
[tex]T_2=2306K=(2306-273)^0C=2033^0C[/tex]
The temperature at pressure of 635.7 kPa is [tex]2033^0C[/tex]
Write the unbalanced chemical equation for the following reaction:
nitrogen + hydrogen produces
ammonia (NH3)
3) Rubidium reacts with rubidium nitrate to produce rubidium oxide and nitrogen gas
a- Write the chemical reaction
b- Balance the chemical reaction
Find the molecules of nitrogen gas when 6.4 g of rubidium react
d- Find the mass of rubidium oxide produced when 7.1 g of rubidium nitrate react
Answer:
3) Rubidium reacts with rubidium nitrate to produce rubidium oxide and nitrogen gas
a- Write the chemical reaction
10Rb + 2RbNO3 → 6Rb2O + N2
The evidence of chemical changes with an example of each (include all 5)
Answer:
??????????
Explanation:
dlaczego emaliowane garnki rdzewieją w miejscach uszkodzenia emalii
Answer:
Explanation: I don’t even know what you said
Answer:
so basically
Explanation:
bsuxnssu hhusnn ji
Does somebody know the answer ?
How do stars, like the sun, produce energy?
• Answers MUST include:
○ how the energy is produced AND the kinds of energy produced.
Answer:
The sun, like all stars, is able to create energy because it is essentially a massive fusion reaction. Technically known as nuclear fusion, this process releases an incredible amount of energy in the form of light and heat.
Types of energy produced: Stars produce energy from nuclear reactions, primarily the fusion of hydrogen to form helium.
Explanation:
hope this helped :D
Slow cooling of magma leads to the formation of large crystals, such as halite and calcite.
Select the correct response:
True
False
Can you balance an Egg on the Spring Equinox? R: Restate the Question * A: Answer the question * C: Cite your evidence E: Explain your answer *
Answer:
No you cannot balance an Egg on Spring Equinox without practice and the right egg
Explanation:
No you cannot balance an Egg on the spring Equinox and this is because it is just a Myth, according to Dr Harry E. Keller,
Balancing of an egg ( making an egg stand upright ) takes practice, Getting the right egg ( i.e. an egg with its yolk placed at the center of the egg ) and can be done anytime of the day and not just on spring equinox
Sarah is running a race and is almost to the finish line. In the last 5 seconds, her velocity changes from 2m/s to 4m/s. What is her average acceleration during the last 5 seconds of the race?
Answer:
[tex]\boxed {\boxed {\sf a= \frac {2}{5} \ or \ 0.4 \ m/s^2}}[/tex]
Explanation:
Acceleration is found by dividing the change in velocity by the time. The formula is:
[tex]a= \frac {v_f-v_i}{t}[/tex]
where [tex]v_f[/tex] is the final velocity, [tex]v_i[/tex] is the initial or starting velocity, and [tex]t[/tex] is the time.
Her velocity changes from 2 meters per second to 4 meters per second in the 5 seconds. Therefore:
[tex]v_f= 4 \ m/s \\v_i= 2 \ m/s \\t=5 \ s[/tex]
Substitute the values into the formula.
[tex]a= \frac { 4 \ m/s- 2 \ m/s}{5 \ s}[/tex]
Solve the numerator and subtract.
[tex]a= \frac { 2 \ m/s}{5 \ s}[/tex]
Divide.
[tex]a= \frac{2}{5} \ m/s/s= \frac{2}{5} \ m/s^2[/tex]
This can also be written as a decimal.
[tex]a=0.4 \ m/s^2[/tex]
Her average acceleration during the last 5 seconds of the race is 2/5 or 0.4 meters per square second.
Answer:
Solution :-Here
Initial velocity = 2 m/s
Final velocity = 4 m/s
Time = 5 sec
v = u + at
4 = 2 + a(5)
4 - 2 = a(5)
2 = 5a
2/5 = a
Hence, acceleration is 2/5 m/s²
Zinc nitrate can be produced by reacting an acid and a metal oxide.
Name the acid and the metal oxide used to produce zinc nitrate.
Acid....
Metal oxide.....
Answer:
Acid - dilute nitric acid
Metal oxide - zinc oxide, zinc hydroxide or zinc carbonate
Explanation:
Zinc Nitrate is produced by carrying out a reaction between the following metal oxides and acid
Acid - dilute nitric acid as concentrated nitric acid produces ammonium nitrate
Metal oxide - zinc oxide, zinc hydroxide or zinc carbonate
Hence the correct answer is
Acid - dilute nitric acid
Metal oxide - zinc oxide, zinc hydroxide or zinc carbonate
Balance the following skeletal equation:
Li(s) + H2O(1) -------> -------> LiOH(aq) + H2(g).
Answer:
I think above answer is fully correct. Mark it brainliest
how many grams are in 2 moles of copper
Answer:
In 2 moles of copper, there are 319.2172 grams.
Explanation:
Quick conversion chart of moles Copper(II) Sulfate to grams 1 moles Copper(II) Sulfate to grams = 159.6086 grams 2 moles Copper(II) Sulfate to grams = 319.2172 grams
Why might the ability to produce three-dimensional images of organs be helpful in diagnosing a patient's ailment?
Answer:
Explanation: The body is largely composed of water molecules. Each water molecule has two hydrogen nuclei or protons. MRI takes advantage of the high prevalence of hydrogen in the body and the magnetic properties of the proton in a hydrogen atom. Hydrogen atoms induce a small magnetic field due to the spin of this atom's proton.
HELP PLS !!!!! NO LINKS
Answer:
Option aWeatheringExplanation:
Weathering is a term which describes the general process by which rocks are broken down at the Earth's surface into such things as sediments, clays, soils and substances that are dissolved in water.As weathered products are carried away, fresh rocks are exposed to further weathering.
Answer:
melting
Explanation:
I think think helpful it is or not
How many grams of Ca metal are produced by the electrolysis of molten CaBr2 using a current of 30.0 amp for
5.50 hours?
Answer: 123 g
Explanation: Q =It = nzF. For Ca^2+ z= 2, t = 5.5 x 3600 s and I = 30.0
And F= 96485 As/mol
Amount of moles is n = It /zF = 3.078 mol , multiply with atomic mass 40.08 g/mol
What is the connection between wildfires and sea ice?
What is to dissolve?
Answer:
(with reference to a solid) become or cause to become incorporated into a liquid so as to form a solution.
PLEASE HELP ASAP A gardener plants a new kind of plant that will attract more helpful insects to his garden. Suddenly, the gardener notices a significant increase in the number of spider webs in the garden. Why has most likely occurred in this situation?
The carrying capacity of the environment has changed.
The limiting factor for spiders has increased in amount.
The carrying capacity of the environment has not changed.
The limiting factor for spiders has decreased in amount.
Answer:
The carrying capacity has changed
Explanation:
By adding in the help bugs, the gardener increased the amount of food available for the predators who eat the help bugs, these are the spiders.
The enviroment for spiders now has more food, and can carry more spiders in it.
HELPP asap I’ll mark you as brainlister
Answer:
The solution is nopolar
Explanation:
Answer:
The solution does NOT conduct electricity.
Explanation:
Nonelectrolytes are usually held together by covalent bonds rather than ionic ones.
What test would be done to prove the color of specific compounds is due to metal ions apart from flame test
Answer:
Borax bead test
Explanation:
Another test that can be used to identify colored ions in a specific compound such as salt is called "Borax bead test".
This test involves use of a clear glassy bead of borax that is joined together in a wire loop which is going to be involved in chemical reaction with the salts of certain metals.
This reaction will produce colors that we can use to identify the exact metal ions that are present.
A single atom of an element has 11 protons, 11 electrons, and 12 neutrons. Which element is it?
OV
Na
Mg
Se
Save and Frit
Answer:
Na
Explanation:
Sodium
Calculate the volume in mL of 53.2 g of .251M solution of HCl.
Show work please
Answer:
5.813 mL
Explanation:
You need to use the formula : vol = mass / molar mass x molarity
the molar mass of HCl is 36.46 and the problem gives you the rest of the equation
0.251M x 36.46 = 9.151
53.2g / 9.151 = 5.813 mL
*I don't know some of the units so that's why some of them are blank sorry
*I'm also sorry if this is wrong but it's what I did so..
Increase the coefficient for NH3. Look at
the balance labeled "H" (for hydrogen).
Why are there now 3 hydrogen atoms on
the right side of the balance but 0 on the
left side?
Answer:
I don't know please you tell me just joking
Assume that the variables x and y are directly related. If k = 8, what is the value for each of the following polnts? Be sure
and record your data to be used in the following problem.
The diagram represents a wave pattern in a certain medium. Answer the following questions based on the diagram.
Referring to Figure 23-2A, the wavelength in the diagram is represented by the distance from:
Answer:
c
Explanation:
i just took the test
What is the process of old crust sinking back into the mantle? *
a. earthquake
b. transform boundary
c. seafloor spreading
d. subduction
Answer:
dddddddddddddd
ddddddddddddddddd
7. A certain hydrocarbon, CxHy, is burned (reacts with O2 gas) and produces 1.955 g of CO2 for every
1.000 g of H20. What is the empirical formula of this hydrocarbon?
CxHy + (X + y/4) O2 -> xCO2 + y/2 H2O
Answer:
The empirical formula of the hydrocarbon is C₂H₅
Explanation:
The formula for the hydrocarbon is [tex]C_xH_y[/tex]
The mass of CO₂ produced per 1,000 g of H₂O = 1,955 g
The equation for the chemical reaction is given as follows;
[tex]C_xH_y[/tex] + (x + y/4) O₂ → XCO₂ + y/2H₂O
From the given chemical equation, counting the number of atoms on both sides of the equation, we have;
The molar mass of CO₂ = 44.01 g/mol
The molar mass of H₂O = 18.01528 g/mol
The number of moles of H₂O in 1,000 g of H₂O = 1,000 g/(18.01528 g/mol) = 55.5084351 moles
The number of moles of CO₂ in 1,955 g of H₂O = 1,955 g/(44.01 g/mol) = 44.4217223 moles
Therefore, given that X moles of CO₂ is produced alongside Y/2 moles of H₂O. we have;
X = 44.4217223, Y/2 = 55.5084351
∴ Y = 2 × 55.5084351 = 111.0168702
The ratio of X to Y = X/Y = 44.4217223/111.0168702 = 0.40013488238
∴ The ratio of X to Y = X/Y ≈ 0.4 = 4/10
X/Y ≈ 4/10
The empirical formula is the representation of molecular formula in the smallest whole number ratio of the elements of the molecules
Therefore, when X = 4, Y = 10, from which we have the smallest ratio as;
When X = 2, Y = 5
The empirical formula of the hydrocarbon is therefore, [tex]C_xH_y[/tex] = C₂H₅
The given chemical equation becomes;
C₂H₅ + (2 + 5/4) O₂ → 2CO₂ + 5/2H₂O
C₂H₅ + 3.25 O₂ → 2CO₂ + 2.5 H₂O
We then have;
4C₂H₅ + 13 O₂ → 8CO₂ + 10 H₂O
The empirical formula of the hydrocarbon, [tex]C_xH_y[/tex] = C₂H₅.
molecular formula of CH2O, 120 g/mol