2 years ago

When was the "Permian Era"?

2 answers:

6 0

The Permian period lasted from 299 to 251 million years ago and was the last period of the Paleozoic Era.

4 0

Answer:

298.9 million years ago - 251.902 million years ago

Explanation:

It might be in the 2011 Earth Science Review Packet so maybe go check that out

You might be interested in

vovikov84 [41]

The answer is the 3rd one down I think

6 0

3 years ago

Digiron [165]

Answer:

$m_{soluto}=60g$

Explanation:

¡Hola!

En este caso, al considerar la unidad de concentración de porcentaje masa/masa, podemos escribir su fórmula como:

$\%m/m=\frac{m_{soluto}}{m_{solucion}}*100\%$

Podemos identificar la masa de soluto (azúcar) como la incógnita, y resolverla como se muestra a continuación:

$m_{soluto}=\frac{\%m/m*m_{solucion}}{100\%}\\\\m_{soluto}=\frac{20\%*300g}{100\%}\\\\m_{soluto}=60g$

¡Saludos!

5 0

2 years ago

natta225 [31]

Answer:

NaSO⁴(ads) ,ganadicate

6 0

2 years ago

chubhunter [2.5K]

The ansewer is Boyle’s law

4 0

2 years ago

makvit [3.9K]

I believe it is 3 maybe

Hope I got it right

8 0

2 years ago