Answer:
[K₂CrO₄] → 8.1×10⁻⁵ M
Explanation:
First of all, you may know that if you dilute, molarity must decrease.
In the first solution we need to calculate the mmoles:
M = mmol/mL
mL . M = mmol 
0.0027 mmol/mL . 3mL = 0.0081 mmoles
These mmoles  of potassium chromate are in 3 mL but, it stays in 100 mL too.
New molarity is:
0.0081 mmoles / 100mL = 8.1×10⁻⁵ M 
 
        
             
        
        
        
Answer: I believe the answer would be methane 
Explanation:
Hope this helps
 
        
             
        
        
        
C. a change of state. It can be a physical or a chemical state of change.
        
                    
             
        
        
        
Answer:
the force between charged particles increases when they are in solid form