2 years ago

Please answer fast, I will give brainliest if correct!

Chemistry

1 answer:

gizmo_the_mogwai [7]2 years ago

5 0

Answer:

Explanation: 30 min

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As a pendulum swings from its highest to its lowest position along an arc, what happens to its kinetic energy and potential ener

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As a pendulum swings from its highest to its lowest position along an arc, what happens to its kinetic energy and potential energy? The potential energy decreases while the kinetic energy increases.

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Beryllium oxide, Beo, is an electrical insulator. How

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There are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.

Explanation:

We can calculate the number of moles (η) of BeO as follows:

$\eta = \frac{m}{M}$

Where:

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M: is the molar mass = 25.0116 g/mol

Hence, the number of moles is:

$\eta = \frac{250 g}{25.0116 g/mol} = 10.0 moles$

Therefore, there are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.

I hope it helps you!

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