Answer:
2.01 A
Explanation:
Para esta pregunta debemos empezar por la semi-reaccion del plomo:
Se intercambian dos electrones en la semi-reacción del plomo. Si tenemos en cuenta la ecuación:
Donde:
<u>n= Moles depositados </u>
<u>I= Intensidad de corriente (en Amperios)</u>
<u>z= Numero de electrones intercambiados</u>
<u>F= Constante de faraday = 96484 C/mol</u>
<u>t=tiempo (en segundos)</u>
Que conocemos de esta ecuación?
<u>Los moles (se pueden calcular a partir de la masa atómica del plomo, 207.2 g/mol)</u>
<u>El tiempo (hay que convertirlo a segundos):</u>
<u>Z (Numero de electrones)</u>
De acuerdo a la semi-reacción son intercambiados 2 electrones.
<u>Por lo tanto podemos resolver para "I":</u>
Espero que sea de ayuda!
Answer:
B)
. six electrons in the triple bond of diatomic nitrogen
Explanation:
The three line in this Lewis dot structure represents the six electrons in the triple bond of diatomic nitrogen.
Nitrogen is made up of 7 electrons with 5 valence ones.
A lewis structure is made up of the symbol of the element surrounded by dot to represent the valence electrons.
In this nitrogen molecule, both species share 6 electrons. This makes each nitrogen atom isoelectronic with neon.
Answer:
D
Explanation:
It is also known as the Dalton’s law of partial pressure. Given a confinement that contains a mixture of gases which do not mix, the total pressure equals the sum of the individual pressures.
The term, which do not mix is necessary because, if the gases are the type that mix, the law will no longer hold as they would have given up their individual identities and hence their individual partial pressure cannot be use to access them anymore.
Hence, the law helps to sum the totality of the pressures of a number of gases which exists together in a confinement and they do not mix. Say we have 3 gases A, B and C. The total pressure is the sum of pressure A, pressure B and pressure C.
I think Co2 is a compound
