Capture all of the smoke and weight it. it will weigh exactly the same before and after you burn it but will just be CO2 and H2O gas.
        
             
        
        
        
Answer:
Carbon dioxide can be collected over water. Carbon dioxide is slightly soluble in water and denser than air, so another way to collect it is in a dry, upright gas jar.
Explanation:
 
        
             
        
        
        
Answer:
The electron configuration for a 
Mn3+ ion is [Ar]3d4
Explanation: