Answer:
2atm symbol can be used to indicate the pressure at which a chemical reaction is carried out
 
        
             
        
        
        
Answer:
 True
Explanation:
Diffusion is an active process that requires a cell to expand a great deal of energy. ... Diffusion through ion channels is a form of active transport. False. Passive transport uses ATP to move molecules against their concentration gradient.
 
        
             
        
        
        
Answer:
If you break a bone, your body immediately begins producing new cells to heal the damage. When your skin is cut, platelets in your blood clot to stop the bleeding, white blood cells remove the dead, injured cells and new healthy cells repair the damaged tissue.
Explanation:
 
        
                    
             
        
        
        
C.The nucleus of an atom is made of protons and neutrons.
Hope this helped!!
        
                    
             
        
        
        
Answer: The mass percent is 0.064%
Explanation:
To calculate the mass percent of solute in a given solution, we use the formula:
Mass of sugar (solute) = 32  g
Mass of solvent = 50 kg = 50000 g   ( 1kg=1000g)
Putting values in above equation, we get:

Hence, the mass percent is 0.064%