I can not open it. Can you please send me a copy? I personally think chemistry is not well represented over here and more articles on chemistry should be posted here. Many teacher do not have enough chemistry background and do not feel comfortable creating new material in chemistry. They are always looking for new material in chemistry and as experts in this field we must help them out with more and more new material
I feel the way this site is designed is preventing us to get to the material of interest. Even in you reach to the page it do not provide proper links to content. You do not see any comments here because people can not read these pages.