Answer:
There are 1.8×1024 atoms in 1.5 mol HCl
Explanation:
 
        
                    
             
        
        
        
Heat in the mantle comes from the Earth's molten outer core, decay of radioactive elements and, in the upper mantle, friction from descending tectonic plates.The temperature difference between the upper and lower boundaries of the mantle requires heat transfer to occur. 
 
Material heating up in the mantle
 
        
             
        
        
        
<span> weather is the condition of the climate in a particular place at a particular
time.</span>