It's weak because it has lost all it's electrons due to oxidation.
Because it eats lots of junk food and doesn't exercise regularly
Ask the iron :D
hydrochloric acid and oxygen corrosion
Yes, it can. It's unusual to make anything from pure iron, however, because it is soft, weak and susceptible to oxidation.
Pure Iron is called Pure iron.
It is because the iron is not strong enough to be able to handle the pressures that steel can. Pure iron is to soft and weak to be of any use and the iron from the blast furnace has too much carbon in it to be useful. That is the real reason
Iron is a pure metal.
Pure iron is homogeneous.
Weak
Weak
Steel is very resistant to corrosion. It is hard and strong. It is resistant to stretching, depending on the type of steel; low-alloy steel and nickel steel. Steel is maleable, but not 'soft' like pure iron, iron is much more useful when in the form of steel. Pure iron is weak, too soft to be used in construction or for any building purposes.
Iron can rust. Actually it is because the iron is not strong enough to be able to handle the pressures that steel can. Pure iron is to soft and weak to be of any use and the iron from the blast furnace has too much carbon in it to be useful. That is the real reason
Kinda-sorta. Pure iron is comparably soft and weak, so what's usually used is steel alloys. You start with iron, add a dash of some other metals and some clever treatments and you get steel, which is stronger.
If it is pure iron then by definition there is no carbon or anything else present in it, just iron.
Pure iron is rarely used; frequently iron alloys or coated iron are more important.