How can you separate talc from water?

Well to separate talc from water you can use the method of Filtration
 
and if you don't  know what Filtration is go to a dictionary for chemistry/Science 

or if you you have one then you could use it .

[hope this helps]

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium

A. ​it generates energy from carbohydrates.b. it requires activation by oxygen.​c. ​it is used by cells to dispose of excess electrons