C. Model. It's a graphical model that displays one or more weather elements. 
        
                    
             
        
        
        
I think it's Letter c.13 if I'm not mistaken
        
             
        
        
        
Answer:
 moles of water in
 moles of water in  of water.
 of water.
Explanation:
Mass of water = 
Molar mass of water = M = 18 g/mol
Moles = n = 

So, there are  moles of water in
 moles of water in  of water.
 of water.
 
        
             
        
        
        
Answer:
44.9g
Explanation:
You have to convert grams of CH4 to moles, use the mole-to-mole ratio of CH4 to water, and convert back to grams. 
(20.0g CH4)(1 mol CH4/16.04g)(2 mol H2O/1 mol CH4)(18.01 g H2O/ 1 mol) = 44.9127 g 
Hope this helps!
 
        
                    
             
        
        
        
False because that doesn’t make sense