Answer:
0.5 centimetres
Explanation:
because 1 mm is 0.1 centimetres
 
        
             
        
        
        
I really don’t know but 
Phosphorus pentoxide is a white solid which does not have any distinct odour. The chemical formula of this compound is P4O10. However, it is named after its empirical formula, which is P2O5. The molar mass of phosphorus pentoxide corresponds to 283.9 g/mol.
        
             
        
        
        
The salt contains ionic bond so that it dissociate ultimately by the movement of ion electricity is conducted
        
                    
             
        
        
        
Is a solid because liquids are not is not that close and gas is very far apart.