Explanation:
Let us assume that the value of  =
 = 
Also at 1500 K,  =
 = 
                      
Relation between  and
 and  is as follows.
 is as follows.
                   
Putting the given values into the above formula as follows.
                   
          
                 
Also,     
or,                
                                = 
                                = 
Thus, we can conclude that the value of  is
 is  .
.
 
        
             
        
        
        
Answer: A. Is decomposition
B. Is synthesis where Na combines with Cl to form NaCl
C. Is single displacement or replacement. Mg displaces Cu.
Explanation:
 
        
             
        
        
        
Answer:
A
C
A
Explanation:
Iam not sure if it's correct
 
        
                    
             
        
        
        
The answer would be C as in cat and D as in dog your welcome i hope this help
        
             
        
        
        
Answer:
The reaction is endothermic 
Part A: Yes because there is an immediate reaction of bubbling vigorously.
Part B: It releases energy because when the compounds are added together they are immediately releasing it by bubbling and turning cold.
Part C: Yes because the liquids inside when combined give off coldness that makes the liquid temperature decrease to use this chemical reaction could definitely be used to keep something cold 
Explanation: