Making ionic compounds: I need help to understand the products we ended up with when we ran this practical.

Making ionic compounds: I need help to understand the products we ended up with when we ran this practical.
Scientific dictionaries: Can any one recommend an affordable scientific dictionary for use with Years 7–10 students?
Many thanks.
Organic waste: Students are investigating the reactions and properties of organic compounds from Heinemann Chemistry 2 VCE units 3 & 4.
potassium bromate: I am wondering if it is safe/acceptable to order potassium bromate in solid form for a visually impressive science reaction for open day purposes.
Esters – preparation, properties and disposal
This is a combination of several questions
Organic chemistry: Could someone please advise about the safe storage and disposal of esters.
Australian Landforms: My Geography HOD asked me if I could access/buy any resources/texts on Australian landforms.
Cleaning glassware: Dichromic acid glass cleaner waste - I use concentrated sulfuric acid and sodium dichromate in the glass cleaner I make.
Information for the use of lasers in schools.
This set of downloadable documents detail standard operating procedures for the use of lasers in schools.
Sulfur disposal: Could you please advise on the procedure for disposing of sulfur, specifically sulfur mixed with iron filings and HCl.