Answer:
scavenger- eats dead carcasses
Explanation:
 
        
             
        
        
        
The first step in the scientific methods is ask a question
        
             
        
        
        
Explanation:
For the first part, 
  Reaction equation: 
          N₂  +  3H₂   →   2NH₃
Given: 
Number of moles of NH₃  = 6 moles 
Unknown: 
Number of moles of N₂  = ? 
Solution: 
    N₂  +  3H₂   →   2NH₃;
   From the reaction above, we solve from the known specie to the unknown. Ensure that the equation is balanced;
          2 moles of NH₃ is produced from 1 mole of N₂ 
         6 moles of NH₃ will be produced from  mole of N₂
  mole of N₂
                                                                       = 3moles of N₂
The number of moles of N₂ is 3 moles 
ii. 
Given parameters: 
Number of moles of sulfur = 2.4moles 
Molar mass of sulfur  = 32.07g/mol 
Unknown: 
Mass of sulfur  = ? 
Solution: 
The number of moles of any substance can be found using the expression below;
  Number of moles  = 
   Mass of sulfur  = number of moles of sulfur x molar mass
 Insert the parameters and solve; 
     Mass of sulfur  = 2.4 x 32.07  = 76.97g
 
        
             
        
        
        
B I think lol when something changes the state of matter