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Why is aluminum light weight?
The nucleus of an aluminum atom weights half that of an iron atom. Not only that, but the spacing between aluminum atoms is greater (its fluffier) so the two effects make aluminum less dense.
The diameter of an aluminum atom is 250 picometers How many aluminum atoms must be placed end to end to make a chain of aluminum atoms one foot long?
There are 304800000 picometers in a foot. Divide that by 250 and you get 12192000. So there are 12,192,000 aluminum column that is 1 atom thick and one foot long.
Why does chromium in stainless steels make them more corrosion resistant in many environments than plain carbon steels?
Chromium forms a tough, adherent ,extremely corrosion resistant, oxide - chromium oxide on the surface. It is the chromium oxide that is extremely corrosion resistant. It also adheres extremely well. Iron oxide - rust does not adhere well - all to do with the Pilling-Bedworth ratio. It is also why Aluminum is very corrosion resistant. It forms a thin adherent layer of aluminum oxide on the surface.
Why does aluminum not rust?
AluminumRust is the process that ferric metals, those based on iron, oxidize, or combine with oxygen. Aluminum is not a ferric metal, so it won't rust. But it will oxidize, which results in a skin of aluminum oxide coating the metal, which protects it from further oxidation. This is why an aluminum can will take 10,000 years to disintegrate. AnswerTechnically, it corrodes. Aluminum oxide is white and coats aluminum making it less bright. When aluminum starts to get a little less bight, it has oxidized. It's just not called rust since rust refers only to ferric metals. By sebIt sort of does. Rusting is something iron does when it oxidizes. Aluminum also oxidizes, it just gets white and crusty looking. It finally oxidizes to the point of disappearing.
What are compounds that form when an element such as aluminum or iron combines chemically with oxygen called?
Compounds that form when an element such as aluminum or iron combines chemically with oxygen are called oxides. Oxide minerals are used to make products such as abrasives, toothpaste, cement, and paint.
What atoms combine to make aluminum?
Aluminum is an element. It is made entirely of aluminum atoms.
How is bauxite useful?
to make aluminum, also aluminum oxide ceramics
What compounds is broken down to make aluminum?
Aluminum oxide
What reacts with iron oxide to make iron?
aluminum
What is mined to make aluminium?
Bauxite, a hydrated aluminum oxide.
How many atoms make up sodium oxide?
Sodium oxide is made up of three atoms: two sodium atoms and one oxygen atom.
What is the chemical formula for aluminun oxide?
Al2 O3 Meaning it takes two molecules of aluminum and three molecules of oxygen to make one Aluminum Oxide molecule.
How many atoms make an aluminum molecule?
3
What chemicals make up aluminum foil?
"Tin foil" is usually made of (mostly) aluminum. As with any metal, there is a certain amount of impurity present within it (carbon, other metals, etc.). Additionally, aluminum is a very reactive metal, so there is always a thin layer of aluminum oxide (Al2O3) on the surface.
What substances are used to make hematite shine?
Hematite is a soft stone, and there are many different polishes out there. Very fine diamond, aluminum oxide, and cerium oxide are a few.
Does aluminum have a reaction with vinegar?
Metallic aluminum has an aluminum oxide layer on the surface which protects it from most chemical reactions, hence, it does not react with vinegar.
How many moles of aluminum oxide are required to make 9.6 moles of water?
3.2 moles of water (H2O)
