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NNADVOKAT [17]
3 years ago
9

When atmospheric pressure decreases, the mercury height in a barometer

Chemistry
1 answer:
Free_Kalibri [48]3 years ago
6 0

Answer:

Decreases

Explanation:

The atmospheric pressure on the surface of the mercury pushes it up the evacuated tube until the downward pressure of the mercury equals the atmospheric pressure.

If the atmospheric pressure decreases, the mercury doesn't have to rise as high.

The mercury height decreases.

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Salt NaCl

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5 0
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You discover a piece of jewelry that you think might be made of silver. You place the item on a balance and determine that it ha
Amanda [17]

No, this item is not made of pure silver because if it has been made from pure silver that it would have displaced only 1.16cm³ of water but due to the addition of some other low-density element it displaces 1.9cm³ of water.

<u>For pure silver</u>

density of pure silver is = 10.49 g/cm³

mass of silver = 12.2 gram

since, density = mass/volume

          volume = mass/density

                        = 12.2/10.49 cm³

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But the actual displaced water is <u>1.9cm³</u>, which means some other element of lower density has been added.

Therefore, it is clear that the given jewelry is not made of pure silver.

Learn more about silver here:-brainly.com/question/17086277

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4 0
1 year ago
 The vertical sequence of the layers of soil is called a soil ____?
Bad White [126]
Soil profile
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5 0
3 years ago
A football was thrown 25m for a touchdown in 2.5s, How fast was the ball traveling?
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Answer:

V=?

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V=10m/s

So, the ball was traveling with the speed of 10m/s.

6 0
3 years ago
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