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mylen [45]
3 years ago
6

Whose work did Niel Bhor build upon?

Chemistry
2 answers:
Elena L [17]3 years ago
8 0
He did JJ Thompson that the answer
dolphi86 [110]3 years ago
4 0
He built his work upon JJ Thompson, a scientist.
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How many “dots” would be around the central atom in the Lewis structure of S?
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B) 6
one above one below and 2 on the left and right sides
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What is fiber and fabric
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Fibre , it is a long thin strand or something like thread of material.

Fabric, it is a cloth material made by weaving or knitting threads together.

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Astatine, At, is below iodine in Group 17 of the Periodic Table. Which statement is most likely to be correct?
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3 years ago
0.250 moles of NaCl is dissolved in 0.850 L of solution. What is the molar concentration?
Nuetrik [128]

Considering the definition of molarity, the molar concentration is 0.294 \frac{moles}{liter}.

Molarity reflects the concentration of a solution indicating the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

molarity=\frac{amount of moles of solute}{volume}

Molarity is expressed in units \frac{moles}{liter}.

In this case, you know:

  • amount of moles of solute= 0.250 moles
  • volume= 0.850 L

Replacing in the definition of molarity:

molarity=\frac{0.250 moles}{0.850 L}

Solving:

molarity= 0.294 \frac{moles}{liter}

Finally, the molar concentration is 0.294 \frac{moles}{liter}.

Learn more about molarity with this example: brainly.com/question/15406534?referrer=searchResults

6 0
3 years ago
Carbon has two naturally occurring isotopes: C-12 (natural abundance is 98.93%) and C-13 (natural abundance is 1.07%). How many
Sav [38]
The number of atoms present, on average, will be the natural abundance of the isotope times the number of atoms in the sample => number of C-13 atoms = C-13 abundance * number of atoms in the sample = 1.07% * 30,000 = 1.07 * 30,000 / 100 = 321 atoms.<span> Answer: 321 atoms.</span>
5 0
4 years ago
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