Answer:
The answer is
<h2>11.73 mL</h2>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula

From the question
mass of object = 30.5 g
Density = 2.6 g/cm³
The volume is

We have the final answer as
<h3>11.73 mL</h3>
Hope this helps you
 
        
             
        
        
        
The empirical formula is the simplest formula attainable while maintaining the ratio so it will be CH2.
Explanation:
 The empirical formula of a chemical compound is the simplistic positive integer ratio of atoms being in a compound. A simple example of this thought is that the empirical formula of sulfur monoxide, or SO, would simply be SO, as is the empirical formula of disulfur dioxide, S2O2.
 
        
             
        
        
        
Answer:
I think the answer is 
Our solar system will always be part of the Milky Way.