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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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Calculate the freezing point (in degrees C) of a solution made by dissolving 7.99 g of anthracene{C14H10} in 79 g of benzene. Th
mario62 [17]

<u>Answer:</u> The freezing point of solution is 2.6°C

<u>Explanation:</u>

To calculate the depression in freezing point, we use the equation:

\Delta T_f=iK_fm

Or,

\Delta T_f=i\times K_f\times \frac{m_{solute}\times 1000}{M_{solute}\times W_{solvent}\text{ in grams}}

where,

\Delta T_f = \text{Freezing point of pure solution}-\text{Freezing point of solution}

Freezing point of pure solution = 5.5°C

i = Vant hoff factor = 1 (For non-electrolytes)

K_f = molal freezing point depression constant = 5.12 K/m  = 5.12 °C/m

m_{solute} = Given mass of solute (anthracene) = 7.99 g

M_{solute} = Molar mass of solute (anthracene) = 178.23  g/mol

W_{solvent} = Mass of solvent (benzene) = 79 g

Putting values in above equation, we get:

5.5-\text{Freezing point of solution}=1\times 5.12^oC/m\times \frac{7.99\times 1000}{178.23g/mol\times 79}\\\\\text{Freezing point of solution}=2.6^oC

Hence, the freezing point of solution is 2.6°C

8 0
3 years ago
You mix two clear liquids and a colored solid forms at the bottom of the beaker. Do you think this is a chemical change? How can
UkoKoshka [18]
The answer is yes. A chemical change occurred.
Chemical change is defined as the rearrangement or alteration in the of atoms in one or more substance which result in the formation of a new substance.

In the above, you mixed two clear liquids and the result was a new substance which is a colored solid precipitate at the bottom of the beaker.
This means that changes in the atoms of the two clear liquids occurred leading to the formation of this new solid substance.

This means that chemical change has occurred.

Hope this helps :)
7 0
3 years ago
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alex41 [277]
Your answer is probably
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nataly862011 [7]

Answer:

3.10g

Explanation:

Please see the attached picture for the full solution.

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3 years ago
As the volume of a gas increases, what happens to the pressure of the gas?
Elena L [17]
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