How many liters of oxygen are required to burn 3.86 l of carbon monoxide?

Explanation:

3.86 L CO  x  1 mol O2  x  1mole O2   x  22.4 L O2  =  1.93 L O2

                   22.4 L CO     2 mole CO      1 mole O2

the awnser is group 12

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101