<span>For the answer to the question above,
If 3g of element combines with 8g of D to form CD it means 
1 mole of C = 3g 
1 mole of D = 8g 
hence it forms CD. 
So to form CD2 you need 16g of element D
I hope my answer helped you</span>
        
             
        
        
        
The answer will be 25.92 L for 17.0 c
        
             
        
        
        
 
 
it would be A ,inorganic Compound
 
        
             
        
        
        
The answer is c. number of protons and d. atomic number. The proton number can identify an element. And also the atomic number is equal to the number of protons.
        
                    
             
        
        
        
The balanced chemical reaction is written as :
Na2CO3<span> + 2HCl === 2NaCl + H2O + CO2
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We are given the amount of NaCl to be produced from the reaction. This will be the starting point for the calculations. We do as follows:
120 g NaCl ( 1 mol / 58.44 g) ( 1 mol Na2CO3 / 2 mol NaCl)( 105.99 g / 1 mol ) = 1108.82 g Na2CO3 needed