Answer:
tetrahedral geometry 
<h3>CHCH2O- CH2CH3</h3>
Explanation:
 There are several centers of interest. Each carbon with all single bonds is the center of a tetrahedral geometry. 
 
        
             
        
        
        
Answer:
grass
Explanation:
it is a plant, hope this helps
 
        
                    
             
        
        
        
Answer:
2Fe + 6HC2H3O2 → 2Fe(C2H3O2)3 + 3H2
Explanation:
There you go
 
        
             
        
        
        
Water has hydrogen bonds between Hydrogen atoms (that are slightly positive in molecules of water ) and Oxygen atoms (that are slightly negative in molecules of water), so it is necessary more energy to break them down and move water molecules from liquid state to gas.