Answer:
c) Fullerene and carbon nanotubes because they have empty spaces inside the  molecules
Explanation:
Fullerene and carbon nanotubes would be the most desired in order to hold the cancer fighting drugs and to carry them through the body safely. 
- These molecules have empty spaces in them. 
 - The cavities makes it possible for storage. 
 - As they pass through the body, they can be held perfectly well to their target site of action. 
 
 
        
             
        
        
        
Answer:

Explanation:
Given that:
Half life = 30 min
Where, k is rate constant
So,  
The rate constant, k = 0.0231 min⁻¹
Using integrated rate law for first order kinetics as:
Where,  
 is the concentration at time t
 is the initial concentration
Given that:
The rate constant, k = 0.0231 min⁻¹
Initial concentration 
 = 7.50 mg
Final concentration 
 = 0.25 mg
Time = ?
Applying in the above equation, we get that:-

 
        
             
        
        
        
molar mass = (22.99) + (1.01) + (12.01) + 3(16.00)
molar mass = 84.01 g/mol
//
(508g)(1 mol/84.01 g) = 6.0
There are 6.0 moles of sodium bicarbonate
 
        
             
        
        
        
Answer:
An ideal gas is a theoretical gas composed of many randomly moving point particles that are not subject to interparticle interactions. The ideal gas concept is useful because it obeys the ideal gas law, a simplified equation of state, and is amenable to analysis under statistical mechanics.
 
        
                    
             
        
        
        
Answer:
centimeter 
Explanation: centimeter is use for meausring length