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Georgia [21]
3 years ago
6

The relative ionic or covalent character of chemical bonds may be estimated by: (Select all that apply.)

Chemistry
2 answers:
kondaur [170]3 years ago
6 0
<span>The relative ionic or covalent character of chemical bonds may be estimated by:

</span><span>-the total number of electrons for each element
-the difference in electronegativities


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!</span>
allochka39001 [22]3 years ago
4 0

Explanation:

An ionic bond is defined as the bond formed because of transfer of electrons from one atom to another. On the other hand, a covalent bond is the bond formed because of sharing of electrons from one atom to another.

So, basically electrons play an important role in the formation of ionic or covalent bonds.

Also, when there is difference in electronegativity of combining atoms then a partial positive charge develops on the metal atom and a partial negative charge develops on non-metal atom.

For example, LiCl compound is ionic and due to difference in electronegativities of Li and Cl atoms they have partial charges as Li^{+} and Cl^{-}.

Thus, we can conclude that the relative ionic or covalent character of chemical bonds may be estimated by:

  • the total number of electrons for each element.
  • the difference in electronegativities.
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ArbitrLikvidat [17]

Answer:

6.25 μg/mL

Explanation:

When a dilution is made, the mass of the solute is conserved (Lavoiser's law), so the mass pipetted will be the mass in the assay. The mass is the concentration (C) multiplied by the volume (V). If the pipet solution is called 1, and the assay 2:

m1 = m2

C1*V1 = C2*V2

C1 = 250 μg/mL

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3 years ago
How many grams of O2 are needed to react with 18.2 g of NH3?
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Answer:

44 g oxygen are needed.

Explanation:

Given data:

Mass of oxygen needed = ?

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Solution:

Chemical equation:

4NH₃ + 5O₂   →  4NO + 6H₂O

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Number of moles = 1.1 mol

Now we will compare the moles of ammonia with oxygen from balance chemical equation.

                        NH₃              :                O₂

                          4                 :                 5

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Mass of oxygen needed:

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2 years ago
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3 years ago
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Explanation:

D = m/V     Multiply both sides by V

m = VD

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<em>Calculation: </em>

m = 372 × 2.50

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3 years ago
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