Answer:
4 moles of aluminum and 6 moles of oxygen are produced
 
        
             
        
        
        
<u>Answer:</u> The value of  for the given reaction is 1.435
 for the given reaction is 1.435
<u>Explanation:</u>
To calculate the molarity of solution, we use the equation:

Given mass of  = 9.2 g
 = 9.2 g
Molar mass of  = 92 g/mol
 = 92 g/mol
Volume of solution = 0.50 L
Putting values in above equation, we get:

For the given chemical equation:
                  
<u>Initial:</u>          0.20
<u>At eqllm:</u>     0.20-x        2x
We are given:
Equilibrium concentration of  = 0.057
 = 0.057
Evaluating the value of 'x'

The expression of  for above equation follows:
 for above equation follows:
![K_c=\frac{[NO_2]^2}{[N_2O_4]}](https://tex.z-dn.net/?f=K_c%3D%5Cfrac%7B%5BNO_2%5D%5E2%7D%7B%5BN_2O_4%5D%7D)
![[NO_2]_{eq}=2x=(2\times 0.143)=0.286M](https://tex.z-dn.net/?f=%5BNO_2%5D_%7Beq%7D%3D2x%3D%282%5Ctimes%200.143%29%3D0.286M)
![[N_2O_4]_{eq}=0.057M](https://tex.z-dn.net/?f=%5BN_2O_4%5D_%7Beq%7D%3D0.057M)
Putting values in above expression, we get:

Hence, the value of  for the given reaction is 1.435
 for the given reaction is 1.435
 
        
             
        
        
        
Answer:
K I will attempt
Explanation:
a)

b)
1 : 2 : 2 (I don't know if this is what the question wants but it is what I would answer)
c) 
Hydrogen because it requires 2 moles of H2 to react with 1 mole of O2
d)
24 moles of water. Look at stoichiometric coefficient. 2:2 means 24 moles you get 24 moles 
e)
Oxygen. 2 < 5/2. Remember, 1 mole of O2 requires 2 moles of H2. But 5/2 is still greater than 2
f)
First, let's find out how many moles of water we can get. Since O2 is the limiting reactant, and O2:H2O ratio is 1:2, we will get 4 moles of H2O. Then, we can multiply 4 by Avogadro's number which is  to get the number of molecules. We get: 2.41 * 10^24 molecules of water.
 to get the number of molecules. We get: 2.41 * 10^24 molecules of water. 
 
        
                    
             
        
        
        
I believe the answer is 50.5 molecules 
        
             
        
        
        
Answer:
The water is solvent and the salt is solute