Sodium chloride is made from one sodium atom and one chlorine atom:
Sodium has a charge of +1, or just +. 
Chlorine has a charge of -1, or just -. 
These balance out.
        
                    
             
        
        
        
Answer:
AB + CD ----> AC + BD 
Explanation:
If you think this reaction:
AB + CD ----> AC + BD 
(Reactants)     (Products)
All the statements are true. 
 
        
             
        
        
        
Answer:
B: Increasing the volume inside the reaction chamber
Explanation: