What is your question about it?
        
                    
             
        
        
        
Answer:
Oxidation number:
3*1+ oxidation number of J+2*-2= -1
Oxidation number of J = 0
 
        
             
        
        
        
Answer:
The number of moles = 0.06 moles
Explanation:
i) Formula 
 Number of moles = Mass of the sample ÷ Molar masses of the substances
ii) Number of moles = 10.0 ÷ (137)+(19×2)
 = 10.0 ÷ 175
 = 0.06 moles
 
 
        
                    
             
        
        
        
The correct answer is 3.
A dynamic phase equilibrium is when a reversible reaction no longer changes its ratio of reactants to products. However, substances continue to move between the chemicals at an equal rate, which means the net change is 0. This is known as a steady state.
        
             
        
        
        
The answer is C, because the moon does rotate it just rotates at the perfect time for us to never side the other side of it.