Mg + 2H(NO)3 ⇒ Mg(NO3)2 + H2
        
             
        
        
        
In chemistry, the molar mass M is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg/mol. However, for historical reasons, molar masses are almost always expressed in g/mol.
Hope this helped!
Good luck :p
~Emmy <3
 
        
                    
             
        
        
        
When a molecule can occupy the same active site as the substrate, a situation called enzymes can result.
        
             
        
        
        
Answer:
In 23.49 minutes the concentration of A to be 66.8% of the initial concentration.
Explanation:
The equation used to calculate the constant for first order kinetics:
 .....(1)
.....(1)
Rate law expression for first order kinetics is given by the equation:
![t=\frac{2.303}{k}\log\frac{[A_o]}{[A]}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B2.303%7D%7Bk%7D%5Clog%5Cfrac%7B%5BA_o%5D%7D%7B%5BA%5D%7D) ......(2)
 ......(2)
where,  
k = rate constant
 =Half life of the reaction =
 =Half life of the reaction = 
t = time taken for decay process = ?
![[A_o]](https://tex.z-dn.net/?f=%5BA_o%5D) = initial amount of the reactant = 0.163 M
 = initial amount of the reactant = 0.163 M
[A] = amount left after time t =  66.8% of ![[A_o]](https://tex.z-dn.net/?f=%5BA_o%5D)
[A]=


t = 1,409.19 s 
1 minute = 60 sec

In 23.49 minutes the concentration of A to be 66.8% of the initial concentration.
 
        
             
        
        
        
Answer:  Soundwaves travel as longitudinal or transverse waves depending on the temperature of the medium.
Explanation: i think its C