Hey there!!
Biological Oxygen demand is the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.
Hope this helped you and have a fantastic day! (:
Answer:
2Al + 3Ni(SO4) -------> 1Al2(SO4)3 + 2Ni
Explanation:
Let's hope she didn't watch it without me or i will never be speaking to her again :))
exactly 22.0 grams
because freezing is a physical change not a chemicl change..so nothing is taken away or added
