Answer:
A scalar quantity is defined as the physical quantity that has only magnitude, for example, mass and electric charge. On the other hand, a vector quantity is defined as the physical quantity that has both magnitude as well as direction like force and weight.
 
        
             
        
        
        
Answer:  One of the signs a chemical reaction is taking place is the presence of bubbles. :)
 
        
             
        
        
        
Answer:
what is the question
Explanation: plz give the brainliest