Why don't you read section 1-2 in you packet? Therefore the answer is in there
Every thing
Since characteristic properties for a given substance never change, they can be used to identify unknown matter.
Because scientists haven't sufficient material to test properties of rutherfordium these are unknown and only some are predicted by comparison.
It is helpful to identify an unknown element when you are exposed to a lot of it. This element could be very dangerous to you.
To identify a property, the first step you have to do is to decide which property you want to experiment with. Then, you test on a sample which is unknown. Finally, you compare and contrast the data with the known properties. :)Peace. :)
Because if a substance can't be known then it has to prove its mass and volume
chemical analysis
Every thing
If an organism is very small, scientists use a microscope to try and identify it. In extreme cases, scientists can study the DNA of an unknown organism and compare it to a database to figure out what it is.
elements
elements
nucleas or the cell
Since characteristic properties for a given substance never change, they can be used to identify unknown matter.
smell, permeablity, gas liquid solid plasma??, size, shape, taste
Mineral content
Intensive properties are independent from the mass of an object: density, hardness, melting point.
Because scientists haven't sufficient material to test properties of rutherfordium these are unknown and only some are predicted by comparison.