Answer:
Water alone can't clean clothes because it won't attach to molecules of grease and dirt. 
Explanation:
 The surfactants it contains are made of molecules that have two different ends. One end is strongly attracted to water; the other is attracted to oily substances like grease.
 
        
                    
             
        
        
        
Answer:
Explanation:
The lewis structure (indicating all the atoms and patterns provided as hint in the question) of glycine can be seen in the attachment below. While the chemical structure of glycine can be seen below
          H 
           |
H₂N - C - C =O
           |      \
          H      OH
The structure (of glycine) above provides a "fair idea" of how the lewis structure will be.
 
        
             
        
        
        
Answer:
C. Hair dryer
Explanation:
Alternating Current
The other kind of electricity is called alternating current, or AC. Power plants produce this
type of electricity. It is carried by large power lines from the plant to your home. When you
plug a TV, a lamp, or a hair dryer into the wall socket, you are using this type of electricity.  
 
        
             
        
        
        
Answer:
pure is water made by us
Explanation:
lap water are pured also but somtimes they are dirty
 
        
                    
             
        
        
        
Because at atmospheric pressure the boiling point is below room temperature, just like Oxygen, Nitrogen etc