This question is incomplete, but I can do it for you, considering the equation to be *In its most famous form*:
A+B⇒C+D
A and B here are the reactants, while C and D are the products.
The reactants are generally the input materials in the beginning of any chemical reactions and they usually, if not always, are on the left hand side of the chemical equation. While the products are on the right hand side and are the final output of the chemical reaction.
Hope this helps.
        
                    
             
        
        
        
Answer:
1 x 10¹⁷
                
Explanation:
Given data: 
         Radius of the earth  = 6000km 
         Radius of an atom  = 60pm
Now, how many orders is the radius of the earth larger than an atom
 Solution: 
To solve this problem, let us express both quantity as the same unit; 
          1000m  = 1km
     6000km  = 6000 x 10³m   =  6 x 10⁶m
     60pm; 
             1 x 10⁻¹²m  = 1pm 
     60pm  = 60 x  1 x 10⁻¹²m  = 6 x 10⁻¹¹m
 Now; 
 The order:    = 1 x 10¹⁷
   = 1 x 10¹⁷
                
 
        
             
        
        
        
Answer:
ε = 6.617 V
Explanation:
We are given;
Number of turns; N = 40 turns 
Diameter;D = 18cm = 0.18m
magnetic field; B = 0.65 T
Time;t = 0.1 s
The formula for the induced electric field(E.M.F) is given by;
ε = |-NAB/t|
A is area
ε is induced electric field
While N,B and t remain as earlier described. 
Area = π(d²/4) = π(0.18²/4) = 0.02545
Thus;
ε = |-40 × 0.02545 × 0.65/0.1|
ε = 6.617 V
(we ignore the negative sign because we have to take the absolute value)