Answer:
с
Explanation:
the first quantum number of an electron gives the information about the energy level the electron is in
 
        
             
        
        
        
Answer:
<h2><u>
neutron capture
</u></h2>
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Explanation:
<em>Hope this helps :)  </em>
<em>Pls make brainliest :3  </em>
<em>And have an amazing day <3</em>
 
        
             
        
        
        
Answer:
The temperature of the boiler is approximately 147.1 °C 
Explanation:
A Carnot engine is an ideal engine that has the highest efficiency among all the engines because the second law of thermodynamics.That efficiency  is:
  is:

with  the temperature of the hot reservoir (the boiler temperature) and
 the temperature of the hot reservoir (the boiler temperature) and  the temperature of the cold reservoir (the steam temperature). Solving for
 the temperature of the cold reservoir (the steam temperature). Solving for  :
:

 
        
             
        
        
        
C. a chemical reaction occurred when the two liquids were mixed