Chemistry is used in everyday life, from making food to breathing air. Chemical…
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A new study from North Carolina State University and the National Institute…
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Extraction of Aluminium - Hall (Electrolytic) Cell. The steel container is coated with carbon (graphite) and this is the negative electrode (cathode). Electrolysis of the alumina/cryolite solution gives aluminium at the cathode and oxygen at the anode. Al3+ + 3e- Al (aluminium metal at the (-)cathode) 2O2- - 4e- O2 (oxygen gas at the (+)anode) Aluminium is more dense than the…
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The two main ingredients are copper and sulphuric acid, but simply adding copper to a diluted acidic solution will not promote the oxidation reaction. This is because the standard reduction potential of copper (+0.52) is higher that hydrogen (0.00), which means copper has a lower tendency to lose electrons than hydrogen. In practical terms, this means copper cannot reduce hydrogen…
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Unless you are a representative of a national meteorological bureau licensed to carry a barometer (and odds are you re not), bringing mercury onboard an airplane is strictly forbidden. Why? If it got loose, it could rust the plane to pieces before it had a chance to land. You see, airplanes are made of aluminum, and aluminum is highly unstable. Wait, isn t one of the great…
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Hydroxide is a common compound of aluminum, , and which can be considered either a base with the formula Al(OH)3, or an acid with the formula H3AlO3. In addition, the compound is frequently treated as a hydrate—a water-bonded compound—of aluminum oxide and designated variously as hydrated alumina, or aluminum hydrate or trihydrate, hydrated aluminum, or hydrated aluminum oxide…
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Early in my career I worked for a dealership that sold production boats, every one of which was equipped with painted aluminum arches. Invariably, the paint would blister, in some cases before the vessels were offloaded from delivery trailers, and warranty claims were dutifully submitted, which the builder, to its credit, promptly paid. In an effort to stem the cash flow, the…
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Polishing compound is a very fine powder designed to buff off any fine scratches left behind by the prepolish grit and produce a bright, lustrous shine on the surface of tumbled rocks. The most recommended polish is aluminum oxide, often called alumina or three-micron alumina because of its size. The reason for its recommendation is price (other polishing compounds are…
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This certificate confirms that the product detailed below complies with the specifications currently published by RS Components and has been subject to the quality conditions of our registration to the BS EN ISO9001:2008 management standard. Furthermore, where applicable, it provides assurance that all electrostatic discharge sensitive devices have been handled and packed under…
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The preparation and physical characterization of granular ferric hydroxide as an adsorber of arsenic and other ionic species from aqueous solutions is discussed. The aim of the work is the preparation of granular ferric hydroxide in robust form using a temperature controlled freeze/thaw procedure. This procedure is described in detail and the physical properties of the derived…
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Aluminum Oxide or Alumina is a highly insoluble thermally stable Aluminum source suitable for glass, optic and ceramic applications. Aluminum oxide has a fairly high thermal conductivity for a ceramic material although it is an electrical insulator. The most common form of crystalline alumina is known as corundum. Aluminum Oxide is available in activated, super activated, acidic…
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Excerpt of interest refers to “chemtrails” a description used in an article authored by neurologist, Russell Blaylock. “With increasing proliferation in the usage it is certain that aluminum oxide nanoparticles will ultimately find a way into the biosphere [17], chemtrails left by jet fuel have already raised concerns over their role increased incidences of Alzheimer disease…
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White aluminum oxide (or white aluminium oxide) grit is a 99.5% ultra pure grade of blasting media. White aluminum oxide is increasingly being used in critical, high-performance microdermabrasion equipment. The purity of this media along with the variety of grit sizes available make it ideal for both traditional microdermabrasion processes as well as high-quality exfoliating…
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The chemistry of nitrogen is dominated by the ease with which nitrogen atoms form double and triple bonds. A neutral nitrogen atom contains five valence electrons: 2s2 2p3. A nitrogen atom can therefore achieve an octet of valence electrons by sharing three pairs of electrons with another nitrogen atom. Because the covalent radius of a nitrogen atom is relatively small (only…
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Aluminum siding was first introduced to the housing market in the 1940s. Since then, many homes have been covered in the durable yet affordable option. Today, more innovative …products have hit the home repair market, making aluminum a less popular choice than in previous years. If you are looking to update your outdoor space, here is everything you need to know about aluminum…
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Molar mass of WO3 = 231.8382 g/mol Molecular weight calculation: 183.84 + 15.4*3 Element Symbol Atomic Mass # of Atoms Mass Percent 15.4 20.703% 183.84 79.297% In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then…
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There is no oxidation number for compounds, only the elements within compounds. The charge of SO4 (sulfate) is 2-. The oxidation number of each oxygen is 2-. The oxidation number of the sulfur in this compound is 6+. There is no oxidation number for compounds, only the elements within compounds. The charge of SO4 (sulfate) is 2-. The oxidation number of each oxygen is 2-. The…
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I love using old machine parts for my projects; often their workmanship surpasses that of anything new, and you can get them cheap or even free. Find a junkyard full of ancient, rusty industrial equipment, and you can build almost anything — or at least be inspired to, which is half the battle! But many older machine parts, especially cheap ones, have rust, paint, or other…
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Silver BritePlus MX cleans & brightens a dirty aluminum trailer to look like new! These two photos show just how well Silver BritePlus MX cleans oxidized aluminum trailers. This Wilson aluminum stock trailer is only four years-old, but it gets used hard on an Oregon cattle ranch—and they don’t spend a lot of time cleaning. It’s been pressure washed before, but that’s…
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Sizes and colors may vary from actual product samples depending on the equipment on which images are viewed and printed. Please view an actual product sample prior to specifying. Enjoy the freedom to mix and match colors and finish to create unique design options! Grade: Standard (.048 ) Vertical (.028 ) Sheet size: 4 X8 4 X10 Textured Gloss Chrysalis Catalyst Crisscross…
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The preferred oxidation states of s-block metals can be explained by looking at their electron configurations: Note that for the alkali metals, each element has one more electron than a noble-gas configuration. This electron is very weakly bound to the nucleus as evidenced by the ver low ionization energy: It is much harder to remove the 2nd electron, since it is contained…
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Aluminum is the only metal that can be dyed. That means that the grain structure of the metal will absorb a dye to a depth of about three thousands of an inch. This ability is what makes anodizing, clear, black, blue, etc so effective. When you want to polish to bare metal, get ready to remove some metal. You can purchase cold anodizing pens and dyes fairly cheaply but they…
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Oxidizing agent and Reducing agent Oxidizing agent are those species which oxidizes others and itself gets reduced during a chemical reaction. Reducing agent are those species which reduces others and itself gets oxidized during a chemical reaction. According to Electronic theory, oxidizing agent are those species which oxidizes others by accepting the electrons lost and reducing…
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How do I get that gorgeous brown patina on copper or brass? There are actually several ways to get that gorgeous brown patina on your copper or brass. You can use chemicals or more eco-friendly methods. Some chemicals can be caustic and must be used with care. One chemical that I use is household clear ammonia. Ammonia works on Copper and Brass. One of the eco-friendly methods…
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By the end of gen chem, calculating oxidation states of different metals should be pretty familiar. Here’s what you do. Take a typical compound – FeCl3, for instance. Treat every bond between the metal and a different atom as if it were an ionic bond. That means the more electronegative elements (like chlorine, say, or oxygen) bear negative charges, and the less electronegative…
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Oxygen is -2 therefore there are 3 oxygen s so -2 x 3 = -6. Overall molecule there is no charge so for it to be neutral iron must have an oxidation state of +3 as there are two iron atoms. You have 3 atoms of Oxygen in the molecule which gives you the total of oxidation states 3 * -2= -6 To balance it off you have two atoms of Fe with oxidation state 3 which gives you 2*3=6…
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Name(s) 1. Identify the oxidation state of each element in the following: a) Na2SO4 b) MnO4– c) KClO3 d) CH3OH 2. Identify the oxidation state of nitrogen in the following: (a) NO3– (b) NO2 (c) NO2– (d) HNO2 (e) NO (f) N2O (g) N2 (h) NH2OH (i) N2H4 3. Determine the oxidation state of the specified element in the following: (a) Cr in Cr2O72– (b) Mn in MnO2 (c) Fe in Fe2O3 (d)…
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