List of 25 single displacement chemical reactions.

Firstly, a single displacement reaction is where when only ONE element is replaced by another element. (In a compound) 
I'll give you a few examples to get you started off with, however we can't do ALL the work for you. So I'd suggest looking at the examples to help you get 23 other examples. 

1) 2 NaCl(aq) + F2(g) → 2 NaF(s) + Cl2(g)    

2) 2 HCl(aq) + Zn(s) → ZnCl2(aq) + H2(g)

If it releases 5 tons a day and there are 7 days a take that answer and multiply by 5 percent (0.05) to find the amount released in one week. leave a comment if you need more .