D, carbon dioxide and water. Methane and oxygen PRODUCE carbon dioxide and water in their reaction. 
        
                    
             
        
        
        
Answer:
a
Explanation:
im thinking because the water is a room temperature there shouldnt be anm immence amount og heat energy for it to have a good amount of energy tho i could be wrong because its not moving it could have no energy.
 
        
                    
             
        
        
        
Answer:
 Mass of water = 73.08 g
Explanation:
Given data:
Mass of hydrogen = 35 g
Mass of oxygen = 65 g
Mass of water = ?
Solution:
First of all we will write the balanced chemical equation:
2H₂  + O₂   →    2H₂O
Number of moles of hydrogen = mass/ molar mass
Number of moles of hydrogen =  35 g/ 2 g/mol
Number of moles of hydrogen = 17.5 mol
Number of moles of oxygen = 65 g / 32 g/mol
Number of moles of oxygen = 2.03 moles
Now we compare the moles of water with moles hydrogen and oxygen.
                                      H₂               :              H₂O
                                       2                :                2
                                     17.5              :              17.5
 
                                        O₂             :            H₂O
                                       1                :               2
                                       2.03         :             2× 2.03 =4.06 mol
Number of moles of water produced by oxygen are less so oxygen is limitting reactant.
Mass of water:
            Mass of water = number of moles × molar mass
           Mass of water = 4.06 mol × 18 g/mol
            Mass of water = 73.08 g
 
        
             
        
        
        
Answer:
the answer is 7 which is the atomic number of nitrogen
Explanation:
Al+Na=24
24/Oxygen (8) =3
3x rounded atomic mass of Ne (3x20) = 60
60+ 20 (# of neutrons in K)=80
80-30 (# of electrons in zinc)= 50
50/25 (the atomic number of Mn)=2
2x9 (number of protons in F)= 18
18+24 (atomic mass of Mg)=42
42/6 (number of neutrons in boron)=7
7 is the atomic number of Nitrogen (N)
 
        
             
        
        
        
The volume is the same for any gas