En un proceso de destilación se trabaja alimentando una corriente de un 90% en peso de agua y el 10% restante de etanol, obteniendo un producto de destilado del 65% en peso de etanol, que supone el 10% en peso del total de la corriente de alimentación. Se genera un residuo de la destilación de composición desconocida

the answer is a and have a great day

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

answer: option (a) is the correct answer.

explanation:

the measurement of hydrogen ions in a solution is known as ph.

if ph of a solution is less than 7 then the solution is acidic. if ph of a solution is greater than 7 then the solution is basic.

when the ph of a solution equals 7, then the solution is considered as neutral.

the ph of pure water is 7, therefore, it means that concentration of hydronium ions equals that of hydroxide ions.