Answer:
Computer, Microprocessor, Cell Phone, WWW, iPhone
Explanation:
i just did it and got it correct
 
        
                    
             
        
        
        
<span>FeNCS+ product...............thats how you do it i believe </span>
        
             
        
        
        
<span>The ionic charge of Calcium (Ca) in calcium carbonate (CaCO3) is 2+. CaCO3 has a neutral ionic charge sin CO3 has a 2- charge.</span>