Iron is not soluble in water.
Yes
You can put the mixture in water where the wood will float and the the iron sink, or separate them with a magnet, where the iron will be attracted and the wood will not.
No, the atomic mass is the average mass of the atom and the atomic diameter is the average diameter of the atom
40mm diameter and 17mm tall (average tealight)
True for iron filing.
Iron is not soluble in water.
Solid
Solid.
Iron fillings can be extracted with a magnet.
Iron filings are very small pieces of iron that look like a light powder.
Iron fillings can be extracted with a magnet.
it is heterogenous
Yes
Iron filings are made when you file a piece of iron with a rasp (they are the bits that are scraped off). They are therefore made of Iron.
it makes me smile :)
They are both mixtures.