Question

how do i draw a particle model to describe the reaction between sulphur and iron in detail?
bobpursley
http://books.google.com/books?id=uykAa7fiT0IC&pg=PA6&lpg=PA6&dq=particle+model+sulphur+iron&source=web&ots=V6uXm8J9Kx&sig=RHUi4i8Qlh2tIf15lPvsiRDIwAI&hl=en&sa=X&oi=book_result&resnum=4&ct=result
Nicky
you draw one
gabe red
you draw one