The name of this compound is Ethyl propyl ether, CH3CH2OCH2CH2CH3 stands for Ethyl propyl ether.
 
        
             
        
        
        
 Answer:
Rb
Alkali Metals are Group 1 so 
Rb it isnt Hydrogen because it is a gas
Explanation:
 
        
                    
             
        
        
        
Answer:
D. The piece of bread travels with straight- line horizontal acceleration. 
Explanation