Noble gases are supposed to be the least reactive elements so I’m assuming Neon would be the most least reactive out of all of them.
        
                    
             
        
        
        
It's a cyclohexane ring with an ethyl group at 1 and a methyl group at 3. The Ethyl group is bigger and more important group get's the first position. 
1-ethyl-3-methylcyclohexane
        
                    
             
        
        
        
Answer:
<em>YOU</em> use <em>YOUR OWN WORDS</em>
Explanation:
Have a good day! :)
 
        
                    
             
        
        
        
Answer:
Weight is the measure of the force of gravity on an object. The mass of an object will never change, but the weight of an item can change based on its location. For example, you may weigh 100 pounds on Earth, but in outer space you would be weightless.
Explanation:
I can't see the options but I hope this helps!