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2 years ago

PI3 trigonal planar trigonal pyramidal tetrahedral

Chemistry

1 answer:

EleoNora [17]2 years ago

3 0

The bond polarities of a molecule of ammonia (NH₃) are <u>polar</u>.
The molecular shape of a molecule of ammonia (NH₃) is <u>trigonal pyramidal</u>.
The molecule of a molecule of ammonia (NH₃) is <u>polar</u>.

<h3>The types of covalent bond.</h3>

In Chemistry, there are two (2) main types of covalent bond and these include the following:

Polar covalent bond.

Non-polar covalent bond.

<h3>What is electronegativity?</h3>

Electronegativity can be defined as the ability or tendency of the atom of an chemical element to attract any shared pair of electrons.

In Chemistry, the difference in electronegativity between an atom of nitrogen (N) and hydrogen (H) causes electrons to preferentially orbit an atom of nitrogen (N), thereby, making the bond polar.

Furthermore, the molecular shape of a molecule of ammonia (NH₃) is <u>trigonal pyramidal</u> and the molecule of a molecule of ammonia (NH₃) is <u>polar</u>.

Read more on bond polarities and electronegativity here: brainly.com/question/12789975

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<u>Complete Question:</u>

Describe the characteristics of a molecule of ammonia (NH3). The Lewis structure and table of electronegativities are given.

The bond polarities are BLANK 1, the molecular shape is BLANK 2, and the molecule is BLANK 3.

blank 1 options: nonpolar, polar

blank 2 options: bent, linear, tetrahedral, trigonometry planar, trigonal pyramidal.

Blank 3 options: nonpolar, polar

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Phosphorus react with carbon<br>

ZanzabumX [31]

Answer:

Phosphorus atoms can bond with oxygen atoms to form ester groups. These can bond with carbon atoms, yielding a large number of organic phosphorus chemicals. These are found in many important biological processes

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3 years ago

On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink can contains approximately 15

MrMuchimi

Answer:

5400 cans

Explanation:

First we convert the total weight, 1 ton, to grams:

$1ton=1x10^{6}g$

Now we need to know the mass of aluminum:

$m_{Al}=\frac{10^{6}*8.1}{100} =81000g$

Now we make the relation between the mass of aluminum in 1 ton of the earth's crust and the mass of aluminum per can:

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3 years ago

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

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3 years ago

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Alja [10]

Answer:

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Explanation:

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2 years ago

In what specific situations would you use a light microscope? an electron<br>microscope?

galina1969 [7]

ANSWER

A standard light microscope is used to view living organisms with little contrast to distinguish them from the background, which would be harder to see with the electron microscope.

Electron microscopes can be used to examine not just whole cells, but also the subcellular structures and compartments within them.

7 0

2 years ago