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Leto [7]
3 years ago
6

Who established atomic numbers as the basis for organizing the periodic table?

Chemistry
1 answer:
Jobisdone [24]3 years ago
3 0

Answer:

Henry Moseley.

Explanation:

Hello,

Henry Moseley's work stated that it is better to organize the periodic table in the light of the atomic number (which accounts for the amount of protons and electrons) instead of the atomic mass, because atomic numbers are not arbitrarily assigned as long as they have the aforesaid physical basis.

Best regards.

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Https://edu.rsc.org/resources/the-rate-of-reaction-of-magnesium-with-hydrochloric-acid/1916.article
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3 years ago
0.467 mol NaCl are needed to
Alisiya [41]

Answer:

27.4 gram is the solution it's simple dude...

Explanation:

don't be afraid of huge question they confuse you you need not to be confused

now see simple solution

molality is denoted by m

so

m= moles of solute / mass of solvent in kg.

i hope your know the meaning of solute and solvent....

so moles are given 0.467

and molar mass is given 58.44

so just take out the gram means

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8 0
2 years ago
One atom of silicon can properly be combined in a compound with
Over [174]

your answer is c. two atoms of oxygen.

7 0
3 years ago
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A(n) ________ is a device that measures a change in speed
jok3333 [9.3K]

Answer:

C Accelerometer

Explanation:

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Hpoe this Helps!

5 0
3 years ago
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The radius of a xenon atom is 1.3×10−8cm. a 100-ml flask is filled with xe at a pressure of 1.2 atm and a temperature of 281 k .
vladimir2022 [97]
Radius of Xenon = 1.3Ă—10â’8 cm 
Volume = 100 ml = 0.1 L 
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Temperature = 281 K 
R = Gas Constant = 8.31 J mol^-1 K^-1 
Now find the number of atoms 
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Number of atoms in a mole is same as Avogadro constant A, which is 6.02 x
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n = number of atoms= 0.0052 
N = number of particles 
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Volume of Xe atom which would be a sphere = (4/3) x pi x r^3 
Volume = = (4/3) x 3.14 x (1.3Ă—10â’8)^3 = 9.2 x 10^-24 
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 Fraction of volume will be = 0.00288 / 0.1 = 0.0288
3 0
3 years ago
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