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drek231 [11]
3 years ago
11

List the difference between 3 allotropes of carbon

Chemistry
1 answer:
Blababa [14]3 years ago
4 0

Answer:

Diamond, graphite and fullerness

Explanation:

Diamond is clear and transparent but graphite is black and opaque

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What is the threshold frequency ν0 of cesium?
Montano1993 [528]
 I think this is what you're after:

 Cs(g) → Cs^+ + e⁻ ΔHIP = 375.7 kJ mol^-1 [1] 


Convert to J and divide by the Avogadro Const to give E in J per photon 


E = 375700/6.022×10^23 = 6.239×10^-19 J 


Plank relationship E = h×ν E in J ν = frequency (Hz s-1) 


Planck constant h = 6.626×10^-34 J s 


6.239×10^-19 = (6.626×10^-34)ν 


ν = 9.42×10^14 s^-1 (Hz) 


IP are usually given in ev Cs 3.894 eV 


<span>E = 3.894×1.60×10^-19 = 6.230×10^-19 J per photon </span>

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3 years ago
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Answer:

undefined

Explanation:

It depends on the type of reactants carrying out the reaction.

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3 years ago
Can you explain what makes Earth habitable using science vocabulary words system &amp; planetary geologist
finlep [7]
Earth is the right distance from the sun. It’s protected from harmful solar radiation by its magnetic field and the atmosphere keeps it warm. Earth contains the right chemical ingredients to sustain life such as H2O (water) and C (carbon)
7 0
3 years ago
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Which structure is located between the auricle and the eardrum? O stirrup O ear canal O auditory nerve Ocochlea​
Damm [24]

Answer:

The structure that is located between the auricle and the eardrum is the ear canal.

Explanation:

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Its function is to conduct sound, in the form of vibrations, from the outside to the eardrum. It also has the function of producing a viscous secretion called cerumen, capable of trapping dust particles and small foreign bodies.

Other options are not correct because:

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OlgaM077 [116]

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This can be seen in the picture below that shows the prefixes of the metric system.


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3 years ago
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