Answer:
4.83% of acetic acid in the vinegar
Explanation:
 
        
             
        
        
        
<span>A characteristic feature of diatom cells is that they are encased within a unique cell wall made of silica (hydrated silicon dioxide) called a frustule.</span>
        
                    
             
        
        
        
Chlorine (Cl) forms a salt when it is combined with a metal. This element belongs in halogens. GROUP 17
 
        
             
        
        
        
Alkina metals all have the similar proteries
        
             
        
        
        
The answer to this would be a physical change. Physical changes are changes that affect the form of a chemical substance, but not the chemical composition itself. Hope this helped!