Aluminum is more reactive than iron, yet it is used today for a variety of applications in which iron would corrode (cans, rain gutters, the reason for the corrosion durability of aluminum is that all aluminum products are treated with a plastic coating. aluminum does not react with oxygen. aluminum does not undergo oxidation. very unreactive aluminum oxide forms a thin layer on aluminum.

The reason for the corrosion durability of aluminum is that: D. Very unreactive aluminum oxide forms a thin layer on aluminum.

Aluminum is a chemical element that is found in group (3) of the periodic table and as such, it has 3 electrons in its outermost shell.

Therefore, aluminum has three (3) valence electrons in the outermost shell of its atomic nucleus. Also, its chemical symbol is Al.

In comparison with iron (Fe), aluminum is more chemically reactive but it is widely used for a variety of applications (cans, rain gutters, roofing sheets, etc.) in which iron (Fe) would easily corrode.

Basically, the main reason for the corrosion durability of aluminum is that a thin layer of very unreactive aluminum oxide are formed on the surface of aluminum.

In conclusion, aluminum is protected from corrosion due to the formation of very unreactive aluminum oxide as a thin layer on aluminum.

Read more: link

Aluminum is more reactive than iron

but it forms Al-oxide, that form a thin layer on the surface of Al, and protect Al from reaction with water.

Very unreactive aluminum oxide forms a thin layer on aluminum.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.