It is known that 32g of oxygen takes up 24 litres of space at 25oc. calculate the volume of oxygen that is needed to react completely with 12g of magnesium.

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.