3 years ago

Examine the diagram shown. Which are the correct labels for continental plates 1 and 2?

Chemistry

1 answer:

Over [174]3 years ago

8 0

Answer:

Australian and eurasian

Explanation:

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La densidad del óxido de magnesio. MgO, es de 3.581 g/cm3 El MgO, es de 3.581 g/cm3 El MgO cristaliza con ordenamiento cúbico co

Jobisdone [24]

Answer:

$a=4.213cm$

$r=1.490x10^{-8}cm$

Explanation:

Hola.

En este caso, para calcular la longitud (a) de una cara de celda unitaria, consideramos la siguiente ecuación:

$\rho =\frac{#at*M}{a^3N_A}$

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:

$3.581g/mol = \frac{4atom/celda*40.3g/mol}{a^3*6.02x10^{23}atom/mol}$

Despejando para a, obtenemos:

$a^3 = \frac{4atom/celda*40.3g/mol}{3.581g/cm^3*6.02x10^{23}atom/mol}\\\\a=\sqrt[3]{7.478cm^3} \\\\a=4.213cm$

Finalmente, el radio lo calculamos como:

$r=\frac{\sqrt{2}*a}{4}=\frac{\sqrt{2}*4.213x10^{-8}cm}{4}\\\\r=1.490x10^{-8}cm$

¡Saludos!

6 0

3 years ago

Which of the following represents an alpha particle?<br> O A. je<br> B. He<br> O C. Y<br> O D.B

-Dominant- [34]

I think it’s D hope that helped

4 0

3 years ago

Read 2 more answers

Solve for the volume of a 1.5x10^6cm^3 object in units of liters

Lunna [17]

Answer:

1000cm³=1litre

1.5x10^6cm^3=1.5x10^6cm^3/1000litre=1.5×1000000/1000=1.5×1000=1500litres.

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3 years ago

Is climate the same as weather?

Natasha_Volkova [10]

No they are not, as climate is long term conditions for an area while weather is temporary

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3 years ago

Find the pH of NaOH with a concentration of 0.0600 M.

Citrus2011 [14]

Answer:

12.78

Explanation:

pOH= -log(0.0600) = 1.22184875

pH= 14-1.22184875 = 12.78

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3 years ago