There are 6 molecules of O2.
"O2" is the formula for one molecule oxygen, which has 2 atoms.
The subscript (small) "2" tells you how many atoms are in the molecule.
The coefficient is the big number tells you the number of molecules.
In 6O2, there are 12 atoms in total (6 molecules of 2 atoms each).
        
                    
             
        
        
        
B, the enzyme loses its shape and is no longer able to catalyze reactions.
        
             
        
        
        
It start out with one cell because Mitosis is a cell division of a single cell into two identical daughter cells. So, at the beginning of mitosis, there is only one cell.
        
             
        
        
        
When you are sick your muscles shut down and you skeletal system helps keep you from turning into a blob.