Answer:
Which of the following happens during a lunar eclipse?
Select one:
a. Earth casts a shadow on the moon.
<u>b. The moon casts a shadow on Earth.
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c. Earth stops revolving in its orbit.
d. Earth starts revolving around the moon.
Explanation:
 
        
             
        
        
        
your answer is c. two atoms of oxygen.
 
        
                    
             
        
        
        
Answer:

Explanation:
The equation for mass is:

We plug in the given values into the equation:


 
        
             
        
        
        
An increase in temperature will increase the average kinetic energy of the molecules. As the particles move faster, they will likely hit the edge of the container more often.
        
                    
             
        
        
        
The mass of magnesium should be less than 0.09g to enable a faster reaction rate. Magnesium reacts to form a white coating around it which stops the reaction. The lesser the gram the faster the reaction before the coating is formed. It is also advisable to use magnesium fillings to increase the rate of reaction.