Believe it or not, aluminum is technically more reactive than iron. However, when aluminum is exposed to air, it almost instantly forms a microscopic layer of aluminum oxide (Al2O3) which protects the rest of the aluminum from any further reaction. Iron doesn't do this, and therefore corrodes unevenly, making it unsuitable for certain applications.
Yes, and violently so.
Magnesium is a stronger reducing agent than iron. The magnesium has a stronger tendency to take up the oxygen to form magnesium oxide than iron. Iron misses out on the oxygen until the magnesium is all used up.
Zinc does not react with magnesium nitrate or iron chloride because zinc is less reactive than magnesium and iron. In a chemical reaction, a more reactive metal will displace a less reactive metal from its compound. Since zinc is lower in the reactivity series compared to magnesium and iron, it will not displace them from their salts.
The list begins with the more active (anodic) metal and proceeds down the to the least active (cathodic) metal of the galvanic series. A "galvanic series" applies to a particular electrolyte solution, hence for each specific solution which is expected to be encountered for actual use, a different order or series will ensue. In a galvanic couple, the metal higher in the series (or the smaller) represents the anode, and will corrode preferentially in the environment. 1. Magnesium 2. Zinc Beryllium goto http://corrosion-doctors.org/Definitions/galvanic-series.htm
Iron does not rust when in contact with magnesium because magnesium is more reactive than iron. The magnesium will undergo oxidation, sacrificing itself to protect the iron from corrosion. This forms a protective layer on the iron surface, preventing it from coming into contact with oxygen and water, which are needed for rusting.
Yes, and violently so.
Magnesium is a stronger reducing agent than iron. The magnesium has a stronger tendency to take up the oxygen to form magnesium oxide than iron. Iron misses out on the oxygen until the magnesium is all used up.
Iron corrodes faster than copper because iron is more susceptible to oxidation in the presence of moisture and oxygen, leading to the formation of rust. Copper, on the other hand, forms a protective layer of copper oxide (patina) on its surface that slows down the rate of corrosion.
In a short answer No. But I can't really explain why.
Aluminum (US spelling) is actually much more reactive than iron, and would corrode faster. In fact, it corrodes so fast that in forms a coating of aluminum oxide on any surface in contact with air. But since the surface is covered, it protects the rest of the metal, and it never corrodes deeper than a fraction of a millimeter. So technically, aluminum corrodes much faster, but much less completely because most of the mass of it is protected by the corroded layer.
No, as magnesium is more reactive, and would 'keep' the nitrate.
Magnesium is more reactive than iron. Magnesium reacts more readily with oxygen and water to form compounds like magnesium oxide and magnesium hydroxide compared to iron.
Fe + MgSO4 --> FeSO4 + Mg Fe(iron)is more reactive than mg( magnesium) ........ therefore iron will displace magnesium....... hence it is a displacement reaction.............
The combination of moisture, oxygen and salt, especially sodium chloride, damages metal worse than rust does. This combination corrodes, or eats away at, the metal, weakening it and causing it to fall apart. Saltwater corrodes metal five times faster than fresh water does and the salty, humid ocean air causes metal to corrode 10 times faster than air with normal humidity. Bacteria in ocean water also consumes iron and their excretions turn to rust.
Sodium is more reactive than either magnesium or iron.
yes! it does because magnesium is higher in reactivity series than iron , so the magnesium atom would displace or push out the iron atom from the compound and join with chloride, leaving the pure iron out of the compound Mg + FeCl2 -- MgCl2 + Fe
Chemical change - involves rearrangement of atoms. Chloride that was bonded to hydrogen breaks off and bonds to magnesium. There is a new bond created between hydrogen atoms (two hydrogen atoms make up one hydrogen gas)