C because oxygen was a byproduct of photosynthesis and proved to be EXTREMELY important in the atmosphere.
Answer:
Each ion or charged molecule in a fluid contributes to the fluid's overall electric charge. A difference in charge between two regions of fluid can affect the rate and direction of diffusion between them. For example, positively charged substances will tend to diffuse toward a region with an overall negative charge.
Explanation:
I think theres a few methods to do it, but this is probably the most efficient.
Physician has prescribed 2.5% of 500ml
Actual amount of Aminosyn in this prescription is
500*0.025= 12.5ml of Aminosin
Therefore you need to ensure when you pour your solution of the 8.5% Aminosyn, it has 12.5 ml of Aminosyn.
To work out how much 8.5% Aminosyn you should pour, you must think of the 12.5ml as 8.5%
Therefore 1% = 12.5/8.5= 1.470588
Therefore the amount of 8.5% solution you need to pour is 100* 1.470588= 147.1ml
Then make up the rest(352.9ml) by adding distilled water. You now have 500ml of 2.5% aminosyn.
