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In this application the coating metal sacrifices itself to protect the underlying metal. The coating metal needs to have only a slightly higher reactivity than the metal it is protecting. Otherwise it will be used up prematurely. The "half-reaction potential" for metallic zinc is about -0.76 volts, that for magnesium about -2.37.
Current prices for zinc are around US$1800 per metric tonne and for magnesium around US3300. A higher price would only exacerbate the effect of faster loss.
What else can I help you with?
Would magnesium nitrate react with magnesium?
Yes, aluminum is more electronegative than magnesium thus, resulting in a single displacement reaction. The products would be magnesium + aluminumnitrate
If 2 electrons were removed from magnesium what would the charge on magnesium be?
negative
Would magnesium oxide make an alkali?
Yes. Magnesium oxide will react with water to form magnesium hydroxide.
What would be observed from an aqueous mixture of magnesium chloride and sodium hydroxide?
You would observe precipitation of magnesium hydroxide.
When 24g of magnesium metal is heated in air 40g of magnesium oxide is produced. What mass of magnesium would be needed in order to produce 10g of magnesium oxide?
6g
Why do you apply paint to iron articles?
Paint can protect iron from rusting, especially if it is the right kind of paint - you would not want to use a water based acrylic paint, since the water in the paint would promote rusting, rather than preventing it.
Would magnesium and sulfur make an ionic compound?
No, magnesium and sulfur would not form an ionic compound because they are both nonmetals. Ionic compounds are formed between a metal and a nonmetal. Magnesium and sulfur would likely form a covalent compound instead.
Will copper replace magnesium in compounds?
Not by electromotive action; magnesium would replace copper instead. However, a divalent copper cation conceivably could replace a divalent magnesium ion in a complex mineral such as a silicate or aluminate.
How do you protect my family during an earthquake?
I would protect my family by telling them to go out instead of just sitting in the house and their house would colapse.
Should a katana ordered online have oil on the blade when it arrives?
Blades have oil on them to protect from rusting. Rust is a reaction between the metal an oxygen in the air. I would fully expect the blade to have some amount of oil on it to protect it.
What are the conditions necessary for rusting?
The conditions necessary for rusting are water (or water vapour) and air, specifically Oxygen. If one condition is absent and the other is present then rusting would not occur but if both are present then rusting will occur
Is H2O plus Mg a mixture?
No, H2O plus Mg does not form a mixture. Mixing water (H2O) with magnesium (Mg) would not result in a homogenous combination of substances. Instead, the magnesium would likely react with the water, producing magnesium hydroxide (Mg(OH)2) and hydrogen gas (H2).
Would magnesium nitrate react with magnesium?
Yes, aluminum is more electronegative than magnesium thus, resulting in a single displacement reaction. The products would be magnesium + aluminumnitrate
What might happen in geiger and marsden had used magnesium foil insted of gold?
If Geiger and Marsden had used magnesium foil instead of gold in their famous scattering experiment, they would have observed less scattering due to the lighter mass and lower atomic number of magnesium compared to gold. This would have resulted in the alpha particles penetrating the foil with less deflection, leading to different conclusions about the structure of the atom.
What is the name of melted magnesium?
You would just call it liquid magnesium, or molten magnesium which means the same thing.
Does Mg and O form covalent bonds?
No, magnesium (Mg) and oxygen (O) typically do not form covalent bonds. Instead, they are more likely to form ionic bonds due to their large difference in electronegativity. In an ionic bond, magnesium would donate electrons to oxygen, resulting in the formation of magnesium oxide (MgO).
What would hydrochloric acid do if it came in contact with magnesium?
magnesium chloride
