Iron Definition and 497 Threads

hello there about wat temp does ,Iron oxide, aluminum, baking soda, table salt melt? degress F please. and about how hot does a US conventional gas stove get? thanks. and aluminum foil is pure aluminum right?

Hi there. I'm doing a chemistry project at school in which I am investigating the Iron content of different soft drinks, the problem is, I only know of one that contains iron, or rather says that it contains iron and that is 'Irn-Bru'. I'm from Scotland in the UK, so does anyone know any...

An electric iron marked 1000W, 240V is wrongly connected to a 120V mains.What is the power dissipated by the iron? thanx

A student wishes to light a lamp rated 12V, yet he has only a 2V rms a.c supply with variable frequency. So he attempts to step up the voltage by means of a transformer. Given Ns:Np = 6:1, resistance in the primary circuit is 70 ohm, inductance of primary coil is 0.3H, frequency f is 50Hz a.)...

I am trying to produce iron oxide by placing a iron screw in a glass of water and electrifying it. Is there an easier way to produce rust in larger quantities faster?

Assume that iron dust is mixed with non magnetic dust or powder and it requires separation. How would the iron dust behave if the material containing the iron dust is allowed to fall through a magnetic field zone created by placing electromagnets in an array so that the magnetic zone is about...

Does it something to do with photons emitted by electrons when going down orbits around the atom? And why it glows in red color? Is it light and heat two faces of the same thing? Sorry if the question is ,apparently, too plain. :biggrin:

A 1-kg beaker containing 2 kg of oil(density = 916 kg/m^3) rests on a scale. A 2kg block of iron is suspended from a spring scale and completely submerged in the oil. Find the equilibruim readings of both scales. For the bottom scale, I can find the weight, 29.4 N of the beaker and oil, but...

In terms of electronic structure, Fe3+ is more stable than Fe2+ because it has a half filled d-orbital which gives extra stability. i.e. Fe3+ : [Ar]3d5 Fe2+ : [Ar]3d6 But the standard electrode potential of the following reaction is 0.77V, Fe3+(aq) + e- => Fe2+(aq) which means...

I need help getting started on this. Question: An iron bolt is used to connect two iron plates together. The bolt must withstand shear forces up to about 3200 N. Calculate the minimum diameter for the bolt, based on a saftey factor of 6.0. Here is what I know so far. Shear Strength is 170...

I am trying to make some Iron (II, III) oxide, Fe3O4. To do this, I used this procedure as a model, http://www.sci-spot.com/Chemistry/liqimag.htm [By the way, the colors described are what a color blind person saw, so in reality, it might be somewhat different] I did two trials. The first...

The question basically states write a brief overview of the correlation between the properties and uses for copper, iron, aluminium and zinc. Now I know this sounds like a simple research task, it's supposed to relate to periodic trends and their placing on the table. It's in this area that...

Does the length of an iron bar changes when it is magnetised?

OK, iron chefs...I bought about 20 cans of black beans on sale. Is there any easy way to make black bean soup out of some of them? I thought maybe I could cook some diced onions in chicken stock and puree with the beans..?

I know that hydrochloric acid reacts with a heated mixture of iron and sulfur, but why does it not react with an unheated mixture of iron and sulfur? (During a demonstration, I could see a soggy mixture of the powder and fillings in the acid, and I noticed nothing so I am assuming no reaction...

I have/had a solution of Iron (III) Chloride. I wanted to extract the Iron Chloride out of solution, so I decided to evaporate all the water off and just collect the crystals that form, right? Wrong, appearently, it is very hygroscopic making it some what difficult to actually dry it. I have...

Will I get a shock if I stand on an insulator and touched a iron which supplies a voltage of 2000000V and without Earth wire?

I don't have any idea what it's called... When iron (or metal?) is subject to an extreme magnetic field, it turns different colours. Does this happen to all metals, or just some? I'm thinking about designing jewelry and trying to get this effect, but am wondering what causes it, and on...

A few years ago I discovered the "Iron Chef" program on the Food Network. I have been addicted ever since. The show is funny, informative, fast paced, and interesting. I love it. Why did they stop making new shows? :cry: I have learned so much about Japanese food and culture, it's...

Glass-iron fibres could a magnetic field effect it? Hi, didn't know where to post this but basically if we were to have fibres made of a mixture of glass and Iron could an application of a magnetic field be used to apply a strain? What factors would need to be considered? Thanks

:confused: What store can I buy iron fillings from? And also wire and magnets to go with it.

"Iron core energy change" and "transformers vs. ohms law" Ooh yes, I do have two question. So enjoy the meal all physics lovers! :smile: 1. If the field is increased putting an iron core inside the circuit, then what about energy conservation? (I don't know much about H-fields.) 2...

A brass plug is to be placed in a ring made of iron. At room temperature (20oC), the diameter of the plug is 8.755 cm and that of the inside of the ring is 8.745 cm. They must be brought to what common temperature (in Co) in order to fit? The coefficient of linear expansion for brass is...

Ok, so i understand that DeltaT = Delta L /coff Lo But I am not sure how to figure it with two different substances, Given: A brass plug is to be placed in a ring made of iron. At room temperature (20oC), the diameter of the plug is 8.759 cm and that of the inside of the ring is 8.741 cm...

HI How does a magnetic field build in a natural magnet like iron from a quantum mechanical point of view? I know it has to do with electrons spin and their orbital momentum, but how exactly does it work in a magnet? thanks

Does anybody here know where to find the atomic radius of elements in the periodic table? What about the nucleonic radius? I'm currently trying to find the radius of Iron for some sort of calculation that I'm doing. Thanks -Vince

A hypothetical spherical planet consists entirely of iron. What is the period of a satellite that orbits this planet just above its surface? Im stumped :/ density of iron is 7860 kg/m^3

This is what I've got: Iron mass: 81.9g Initial iron temp.: 92'C Water volume: 100mL Initial water temp.: 25'C Final water temp.: 29'C What the the experimental heat capacity of iron? Thanks :) Bjorn

Why the oxide layer of iron cannot protect iron from corrosion like aluminium and zinc?

URGENT! about iron and magnetism can u explain briefly the magnetism of iron? i know that some iron ore--haematite and magnetite r called natural iron, but what contribute to the magnetic behaviour of iron? and, what r the application of iron? all i could find from the internet only gives a...

Can anyone give me an example of an iron triangle (who the key players are) that is not related to agriculture, the tobacco industry, or healthcare (like social security)? Any good sites with more info on this? Thanks.

There is a 0.8m long, 1.2 iron bar with a string attached to the center, making a 35 degree angle (from the bar). Calculate the torque produced by the tension in the string. A pivot at one end holds the bar, and the string is attached at the bar's center, which is the center of mass. I'm...

Please Help! I have no idea where to start with this one! A 100.0mL sample of water was treated to convert any iron present to ferrous ion. Addition of 25mL of 0.002107M potassium dichromate converted the iron to ferric ion and the dichromate to Cr3+. Excess dichromate was then back...

Does anyone know how does this molecule looks like? (I study Aerospace, don't ask me why do i want to know :cry: ) How does those atomos connect with each other: It's chemical formulae is: Nd_2Fe_1_4B

Plz help ASAP! Iron has a mass of 7.87g/cm^3 of volume, and the mass of an iron atom is 9.27x10^(-26)kg. If the atoms are spherical and tightly packed, a) a) what is the volume of an iron atom? --> this one I do know how to do it, the answer is 1.18x10^29 m^3 b) what is the distance between...

For most of you experts out there, this should be fairly simple to answer. Well, technically, all it takes is logic to answer this: A block of Iron has a temperature of 10 degrees celsius. There is a second block of iron, identicle to the first, that is 2x the temperature of the first block...

Hi everyone, I'm not sure what would happen in the following reaction (it has something to do with the rusting of iron): Fe (s) + KMnO4 (aq) ----> ? KMnO4 is potassium permanganate and I know it is a very strong oxidizer. So I am assuming one of the products may be Fe2O3, which is...

I am currently reading "In Search of Schrodenger's Cat" by John Gribbon. In the book he refers to iron as the most desirable form of matter and that all the matter in the universe "wants" to become iron. I think I recall a professor describing the collapse of a star under gravity and the...

Evryone knows that the work done by a magnetic field is zero. Then how does a permanent magnet lift iron filings.

We all know that the work done by the magetic field is zero. But, how does the magnetic field lift iron objects?

"The Iron Dragon" and a day of time travel. Last weekend Tsunami and I met my parents for a very unusual weekend that begins in the hidden mountain town of McCloud; right next to the majestic, silently sleeping, snow covered volcano called Mount Shasta, in Northern California. The day begins at...

Has anyone seen the hypothesis of http://web.umr.edu/~om/ regarding the possibility our sun is the result of a re-accretion on a supernova remnant? I looked but haven't seen anything on it in the forum, and was wondering what you'all think if it? :confused:

Now for another question on the same subject You all know how in the human body the oxygen binds to the iron compound inside the hemoglobin. and that carbon monoxide has a 200 to 1 affinity to oxygen within the hemoglobin. But anyway my question is if The Iron inside a cell pulls and holds on...

http://www.biomedcentral.com/news/20040226/01

I am considering getting into forging metal things at home as a hobby. Setting up a little smithy in the back. I thought I'd try making some blades and such. What are the properties of iron/steel as it cools? At what rate should it be cooled for different hardness or durability? What...

[SOLVED] Iron Fusion In Stars If iron is said to be the last stage of fusion in stars, how is it that heavier elements are found on earth, where there seems to be less likely a chance for such fusion to occur? Where do these elements come from? Moreover, the half-life of a heavy element on...

Was going to put this up a couple of days ago but was a bit preoccupied. So here goes. Imagine that you take a single crystal of Iron, a whisker, and bend it around to make a circle. How could you find out if the crystal was magnetized? Remember, all the magnetic field is contained inside the...