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2 years ago

Are two atoms of the same element identical?

Chemistry

2 answers:

timurjin [86]2 years ago

7 0

Answer:

No. Two atoms of the same chemical element are typically not identical Explanation:

there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states

Semenov [28]2 years ago

5 0

Answer: No

Explanation: Two atoms of the same chemical element are typically not identical. First of all, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states.

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Correct answer please i need it before 12:07

choli [55]

Answer:

xenon

Explanation:

Xenon is a non-metal, odorless gas, consist of single atoms, colorless, and 8 valence electrons out of everything else on this list.

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2 years ago

Which is the most important factor in determining the state of a substance?

Contact [7]

Temperature, that's the most important factor

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3 years ago

What change results in the formation of different substances

scoundrel [369]

The amount of molecules assembled, the processes performed on the substances. I'm not exactly sure of the question to be honest, but there's a start

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3 years ago

If object A is placed on the pH scale at pH = 3 and object B is placed at pH = 8, which of the following must not be true?

ss7ja [257]

I believe the correct answer is D. Because object A on the pH scale reads pH=3. Which means it is more acidic in nature and thus possess a greater hydrogen or hydronium ion concentration than object B, which has a higher value on the pH scale. Object B would thus have a lower hydronium ion concentration than Object A.

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2 years ago

Calcule la densidad del hidrógeno H2 en g/L a 327 mm Hg y 48ºc

tankabanditka [31]

<h3>The density of H₂ = 0.033 g/L</h3><h3>Further explanation</h3>

In general, the gas equation can be written

$\large {\boxed {\bold {PV = nRT}}}$

where

P = pressure, atm , N/m²

V = volume, liter

n = number of moles

R = gas constant = 0.082 l.atm / mol K (P= atm, v= liter),or 8,314 J/mol K (P=Pa or N/m², v= m³)

T = temperature, Kelvin

n = N / No

n = mole

No = Avogadro number (6.02.10²³)

n = m / MW

m = mass

MW = molecular weight

For density , can be formulated :

$\tt \rho=\dfrac{P\times MW}{R\times T}$

P = 327 mmHg = 0,430263 atm

R = 0.082 L.atm / mol K

T = 48 ºC = 321.15 K

MW of H₂ = 2.015 g/mol

The density :

$\rho=\dfrac{0,430263\times 2.015 }{0.082\times 321.15}\\\\\rho=0.033~g/L$

4 0

2 years ago