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risolatziyovudd
19.05.2020 •
Chemistry
1. Mountains are most likely formed
a. when glaciers melt.
b. from earthquakes.
C. when land sinks.
d. where tectonic plates collide.
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Ответ:
Explanation:
Hola.
En este caso, para calcular la longitud (a) de una cara de celda unitaria, consideramos la siguiente ecuación:
En la que consideramos el número de átomos por celda (4 para FCC), la masa molar (40.3 g/mol para MgO) y el número de avogadro para obtener:
Despejando para a, obtenemos:
Finalmente, el radio lo calculamos como:
¡Saludos!