Answer:
new moon
when the moon is front of the sun its a new moon
 
        
             
        
        
        
Idk if it's correct but I guess it's calcite (c)
        
                    
             
        
        
        
Answer:
Combination or synthesis
Explanation:
The reaction given below: 
              C    +  O₂    →  CO₂  
The reaction above is termed a synthesis or combination reaction because two substances are combining to give a product. 
- A synthesis reaction involves the formation of a single product from two or more reactants. 
- The driving force for such reaction is the large and negative heat of formation of the product. 
 
        
             
        
        
        
Answer:
14 solubility in 200 gram of water at 20 c
Explanation:
Hope this helped, and pleas mark as Brainliest :)
 
        
             
        
        
        
Answer:
B.111
Explanation:
Atomic mass = number of protons(or atomic number) + number of neutrons
186 = 75 + number of neutrons
number of neutrons = 186 -75 = 111