Answer:
Option B. 4 moles of the gaseous product
Explanation:
Data obtained from the question include:
Initial volume (V1) = V
Initial number of mole (n1) = 2 moles 
Final volume (V2) = 2V
Final number of mole (n2) =..? 
Applying the Avogadro's law equation, we can obtain the number of mole of the gaseous product as follow:
V1/n1 = V2/n2 
V/2 = 2V/n2
Cross multiply 
V x n2 = 2 x 2V
Divide both side by V
n2 = (2 x 2V)/V
n2 = 2 x 2 
n2 = 4 moles 
Therefore, 4 moles of the gaseous product were produced. 
 
        
             
        
        
        
Answer:
1) Increasing temperature
2) Stirring
3) Increasing surface area  of salt by grinding it
 
        
             
        
        
        
Answer:
Below
Explanation:
Move or cause to move continuously or freely through the blood.