<u>HI :)</u>
True 
<em>Hope</em><em> this</em><em> helps</em><em> </em><em>:</em><em>)</em>
 
        
             
        
        
        
Answer:
2.2×10^8
Explanation:
Cu(OH)2(s)<---------> Cu^2+(aq) + 2OH^-(aq) Ksp=2.2 x 10 ^-20
2H3O^+(aq) + 2OH^-(aq) <-------> 4H2O(l). Kw= 1×10^14
Cu^2+(aq) + 4H2O(l) <--------> [Cu(H2O)4]^2+(aq) 
Overall ionic reaction:
Cu(OH)2(s) +2H3O^+(aq) <---------> [Cu(H20)4]^2+(aq) 
Equilibrium constant for the reaction: Ksp×Kw= 2.2 x 10 ^-20 × (1/(1×10^-14))^2
Keq= 2.2×10^8
Kw= ion dissociation constant of water
 
        
             
        
        
        
should be clear acid if im not mistaken 
 
        
             
        
        
        
Answer:
Look at the periodic table of elements 
Explanation:
Group 1 is the most reactive and to the right
Group 18 is least reactive and all the way to the left. The rest are in between. The groups go vertical. 
You'd be able to solve with this information youre welcome
 
        
             
        
        
        
Kinetic
Gravitational
Sound
Elastic
Motion
Light
Radiant
Electrical