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aliya0001 [1]
3 years ago
8

Which of these pure substances do you think are Elements?

Chemistry
1 answer:
Paladinen [302]3 years ago
6 0
Au Fe O

The others are compounds
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From shortest wavelength to longest wavelength: ultraviolet ,visible light ,infrared
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According to the combined gas law, the pressure exerted by a gas is:
sergij07 [2.7K]

Answer : The correct option is, (d) inversely proportional to volume and directly proportional to the kelvin temperature

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}

Charles' Law : It is defined as the volume of the gas is directly proportional to the temperature of the gas at constant pressure and number of moles.

V\propto T

Gay-Lussac's Law : It is defined as the pressure of the gas is directly proportional to the temperature of the gas at constant volume and number of moles.

P\propto T

Combined gas law : It is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{PV}{T}=K

or,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

From the above information we conclude that the pressure exerted by a gas is inversely proportional to volume and directly proportional to the kelvin temperature.

Hence, the correct option is, (d)

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How many valence electrons does br want. Not have but want.
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SO the awnser is 76.9 trust me

Explanation:

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Answer:

Electromagnetic force, Strong nuclear force, and Weak nuclear force.

Explanation:
Forces acting

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<em>Solids</em><em> </em><em>do</em><em> </em><em>not</em><em> </em><em>undergo</em><em> </em><em>diffusion</em><em> </em><em>because</em><em> </em><em>it</em><em> </em><em>has</em><em> </em><em>a</em><em> </em><em>fixed</em><em> </em><em>structure</em><em> </em><em>(</em><em>vibrates</em><em> </em><em>in</em><em> </em><em>a</em><em> </em><em>fixed</em><em> </em><em>position</em><em>)</em><em> </em><em>and</em><em> </em><em>it</em><em> </em><em>also</em><em> </em><em>cannot</em><em> </em><em>be</em><em> </em><em>compressed</em><em>.</em><em> </em>

<em>Hoped</em><em> </em><em>this</em><em> </em><em>helped</em><em> </em><em>in</em><em> </em><em>any</em><em> </em><em>way</em><em> </em>

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