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Elena L [17]
3 years ago
10

How many Sodium (NA) Atoms are in Methylene?​

Chemistry
1 answer:
postnew [5]3 years ago
4 0

Answer:

No Sodium(Na) in methylene

Explanation:

Methylene is an organic compound

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Calculate the atomic mass of X. The three X isotopes have atomic mass and relative abundances of 27.9769 amu (92.2297%), 28.9765
Irina18 [472]
<h3>Answer:  Si   (choice D)</h3>

This is the element Silicon.

=========================================================

Explanation:

First convert each percentage to its decimal form.

For example, 92.2297% converts to 0.922297 after moving the decimal point two spots to the left.

After doing that, multiply those decimal values with their respective atomic mass unit (amu) values.

  • 27.9769 * 0.922297 = 25.8030109393
  • 28.9765 * 0.046832 = 1.357027448
  • 29.9738 * 0.030872 = 0.9253511536

Then we add up the results

25.8030109393 + 1.357027448 + 0.9253511536 = 28.0853895409

That rounds to about 28.085

Then look at the periodic table to see the atomic mass of Cobalt (Co), Aluminum (Al), Nickel (Ni) and Silicon (Si). The mass values listed in the periodic table are weighted averages of all the isotopes. The units for the mass are still in amu.

  • Cobalt = 58.933
  • Aluminum = 26.982
  • Nickel = 58.693
  • Silicon = 28.085

We have a match with silicon, showing that <u>choice D</u> is the final answer.

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The burning of gasoline to power internal combustion engines produces water vapor, and carbon dioxide gas that is thought to con
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What role do hydrogen ions play in the electron transport chain high?
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When a particle is moving fast it has a lot of kinetic energy in it. ?
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Random particle motion in liquids and gases is a difficult concept for in temperature, the particles move faster as they gain kinetic energy.

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