This property is called malleability.
Magnets should not be heated or hammered because it disturbs alignment
Hard minerals can be used as abrasives or coatings on cutting blades. Gemstones of valuable minerals are more durable the harder they are.
No, because it cannot be hammered into a thin sheet without shattering
granite
It is a physical reaction, this is because the nail is physically doing something
Gold
Because it is :P
yes it can be hammered into place because it is a metal but non-metal can not be hammered into shape.
no because oxygen cannot be hammered
Magnets should not be heated or hammered because it disturbs alignment
Argon is a noble or inert gas. It is not "hammered into shape" as we understand it.
slaves were valuable property
Hard minerals can be used as abrasives or coatings on cutting blades. Gemstones of valuable minerals are more durable the harder they are.
It is a physical property.
they can be hammered or rolled into shapes
Yes.
Because slaves were property, and somewhat valuable at that. Most people don't like having their property taken away by the government.