You HAVE TO know that molarity (M) tells you the number of moles of a solute per Liters of solution. 
M=mol/L 
0.3M = 2.7 mol/ Volume 
Volume = 2.7 mol/3.0 L 
Volume = 0.9 L
        
                    
             
        
        
        
Answer:
Weathering involves the use of water and or wind to wear down the environment. The sand dunes were most likely carried by wind to form them and form its shape. Erosion most likely took away parts of the sand to make the sand dune. Deposition most likely deposited sand to the area.
Explanation:
If you possibly want a better explanation, try looking it up :).
#teamtrees #WAP (Water And Plant)
 
        
             
        
        
        
Answer:

Explanation:
Here in Calcium Chloride ionic bond is present in between calcium and chlorine atoms. As we know according to Octet rule calcium have two excess atoms and for matching nearest noble gas electronic configuration. It donate two electrons to gain more stability and form  , while chlorine is deficient from one electron to meet nearest noble gas electronic configuration therefore two chlorine atoms accept excess electron from calcium individually and form two
, while chlorine is deficient from one electron to meet nearest noble gas electronic configuration therefore two chlorine atoms accept excess electron from calcium individually and form two ions.
 ions. 

Hence aqueous solution of calcium chloride breaks the ionic bond pairing in one  and two
and two ions:
ions: 
 
        
             
        
        
        
To find average atomic mass you multiply the mass of each isotope by its percentage, and then add the values up.
35 * 0.90 + 37 * 0.08 + 38 * 0.02 = 35.22
Average atomic mass closest to 35.22 amu.