Arenal Volcano: Plate Tectonic Setting. The volcanic arc of Costa Rica, where Arenal is located, is a chain of mountains resulting from the subduction of the Cocos tectonic plate under the Caribbean Plate. Costa Rica is part of the Central American isthmus, which connects the North and South American continents.
 
        
             
        
        
        
Answer:
 A calculator has an endifiite shape because all of its atoms are touching each other
 
        
             
        
        
        
Answer:
There are  
4.517
⋅
10
23
 atoms of Zn in 0.750 mols of Zn.
Explanation:
Since we know that there are  
6.022
⋅
10
23
 atoms in every mole of a substance (Avogadro's Number), there are  
6.022
E
23
⋅
0.750
 atoms of Zn in 0.750 mols of Zn.
 
        
                    
             
        
        
        
The answer is A because I did this before