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otez555 [7]
2 years ago
5

This table lists some characteristics of two planets. Which statement is true?

Chemistry
2 answers:
LekaFEV [45]2 years ago
5 0

gravity

Explanation:

gravity is the same in any planet

Sav [38]2 years ago
3 0

Answer:

40 N

Explanation:

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A 112. 6 g mass of unknown material is submersed in 102 ml of water to yield a final volume of 126 ml. What is the apparent dens
skad [1K]

The density of the unknown material is 0.213 ml/g

<h3>Apparent density of the unknown material</h3>

The apparent density of the unknown material is calculated as follows;

Volume of the unknown substance = 126 ml - 102 ml = 24 ml

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Density of the unknown substance =  24 ml / 112.6 g

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Thus, the density of the unknown material is 0.213 ml/g

Learn more about density here; brainly.com/question/6838128

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4 0
1 year ago
Beryllium oxide, Beo, is an electrical insulator. How
egoroff_w [7]

Answer:

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:

m: is the mass = 250 g

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!

3 0
3 years ago
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