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3 years ago

What is the difference between extensive and intensive physical properties?

1 answer:

6 0

Extensive properties, such as mass and volume, depend on the amount of matter being measured.Intensive properties, such as density and color, do not depend on the amount of the substance present.Physical properties<span> can be measured without changing a substance's chemical identity.</span>

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victus00 [196]

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3 years ago

Identify which of the following statements about the isotopes of an element is correct.

kozerog [31]

Answer:

Explanation:

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3 years ago

What is calcium's matching element

vodomira [7]

Answer: Explanation:

Calcium (Ca), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table. It is the most abundant metallic element in the human body and the fifth most abundant element in Earth's crust.

...

Calcium.

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Explanation:

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3 years ago

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prohojiy [21]

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3 years ago

Read 2 more answers

Calculate the work associated with the compression of a gas from 121.0 L to 80.0 L at a constant pressure of 16.7 atm.

Mkey [24]

Answer:

6.94 × 10⁴ J

Explanation:

We can calculate the work (W) associated with the compression of a gas at constant pressure using the following expression:

W = -P . ΔV

where,

P is the external pressure

ΔV is the change in the volume

Knowing that 1 atm.L = 101.325 J, the work of compression is:

$W=-P\times \Delta V=-16.7atm\times(80.0L-121.0L)\times\frac{101.325J}{1atm.L} =6.94\times10^{4} J$

The positive sign of the work means that the surroundings do work on the system.

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3 years ago