Add proton + neutrons = Mass 37
Proton is same as your atomic mass= 17 
If you go on the periodic table look up 17 and it will give u the letter.
        
             
        
        
        
Answer:
For the most part, non-metals (excluding Nobel gases) are the most likely to form covalent bonds. Pure covalent bonds are formed between atoms with the same electronegativity, ie. they are trying to hold on to the electrons in the bond with the same strength.
 
        
             
        
        
        
Answer:
Mass = 73.73 g
Explanation:
Given data:
Mass of Mg used = 24.48 g
Mass of HCl used = ?
Mass of hydrogen gas produced = 2.04 g
Mass of Magnesium chloride produced = 96.90 g
Solution:
Chemical equation:
Mg + 2HCl   →    MgCl₂ + H₂
Number of moles of Mg:
Number of moles = mass/ molar mass
Number of moles = 24.48 g/ 24.305 g/mol
Number of moles = 1.01 mol
Now we will compare the moles of Mg with HCl from balance chemical equation.
                               Mg             :            HCl
                                1                ;               2
                             1.01              :           2/1× 1.01 = 2.02 mol
Mass of HCl react:
Mass = number  of moles × molar mass
Mass =  2.02 ×  36.5 g/mol
Mass = 73.73 g
 
        
                    
             
        
        
        
Answer:
Explanation:
The photosynthetic equation is as follows:
6CO2 + 6H2O = C6H12O6 + 6O2
According to this equation, 6 moles of water (H2O) is required to produce 1 mole of glucose
 
        
             
        
        
        
For Number 1, the rate changes multiple times. Some times it goes up .4 and sometimes it remains the same. I think you may need to check you work to get a more fluent flow for rate of change.