Un litro de oxígeno contenido en un recipiente ejerce una presión de 60mm Hg y un litro de hidrógeno contenido en otro recipiente ejerce una presión de 30mm Hg, a la misma temperatura anterior. ¿Cuál es la presión total si se mezclan en un recipiente con un volumen total de un litro?

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

b is the correct answer

mark me brainliest and hope this

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.