Mass = number of mol x molar mass
Mass = 0.28mol x 55.8g/mol
Mass = 15.624g
        
                    
             
        
        
        
They all look like there decaying and was left out or sat inside too long
        
             
        
        
        
Following reactions show the major product,
 
        
             
        
        
        
Answer: 
activating digestive enzymes, and making ingested proteins unravel so that digestive enzymes break down the long chains of amino acids
 
        
                    
             
        
        
        
The answer is D
Because the bread cannot go back to its previous state, and because a new substance was formed. :)