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just olya [345]
3 years ago
8

Recorded observations are called:

Chemistry
2 answers:
Lostsunrise [7]3 years ago
7 0
Recorded observations is called data.
Romashka-Z-Leto [24]3 years ago
4 0
Recorded observations are called: data
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Rank the organic compounds from most soluble to least soluble. To rank items as equivalent, overlap them.
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The answer to your questions is as follows:

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What kinds of charged particles can move between objects that are close together?
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Boron has primarily two isotopes, one with an atomic mass of 11.0 amu and another with an atomic mass of 10.0 amu. If the abunda
Masja [62]

Answer:

The atomic mass of the boron atom would be <em>10.135</em>

Explanation:

This is generally known as relative atomic mass.

Relative atomic mass or atomic weight is a physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to the atomic mass of 1/12 of the mass of a carbon-12 atom. Since both quantities in the ratio are masses, the resulting value is dimensionless; hence the value is said to be relative and does not have a unit.

<em>Note that the relative atomic mass of atoms is not always a whole number because of it being isotopic in nature.</em>

  • <em>Divide each abundance by 100 then multiply by atomic mass</em>
  • <em>Do that for each isotope, then add the two result. Thus</em>

Relative atomic mass of Boron = (18.5/100 x 11) + (81/100 x 10)

                                                 = 2.035 + 8.1

                                                 = 10.135

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