Si se disuelven 20 ml de alcohol en 80 ml de agua ¿cuánto es el % de alcohol en la solución ?

Explanation:

% vv = ml solute × 100

             ml slc

ml solution = ml solute + ml solvent

                  = 20 ml alcohol + 80 ml water

                  = 100 ml solution

% vv = 20 ml × 100

            100 ml

% vv = 20%

Girl above me is definetly right

Explanation:

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.