1023 molecules or atoms depending on substance
        
                    
             
        
        
        
Answer:
The photoelectric effect is the emission of electrons when electromagnetic radiation, such as light, hits a material. Electrons emitted in this manner are called photoelectrons. 
Based on the wave model of light, physicists predicted that increasing light amplitude would increase the kinetic energy of emitted photoelectrons, while increasing the frequency would increase measured current.
 
        
             
        
        
        
Answer:
Roman numbers are oxidation state of the metals
Because some elements of metals show more than one oxidation state like iron Fe2+ in ferrous and Fe3+ in ferric.
Explanation:
 
        
             
        
        
        
Just do it and believe in you self come on man you got it
        
                    
             
        
        
        
Answer:
contains water...
Explanation:
the solvent is water, so yes.