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3 years ago

What is shown by the structural formula of a molecule or polyatomic ion?

Chemistry

2 answers:

ziro4ka [17]3 years ago

8 0

Answer:

A) The arrangement of bonded atoms.

B) Number of Ionic bonds.

Explanation

The structural formula shows the bonding and general layout of the molecule.

Several molecules can have the same molecular formular especially in the branch of chemistry.

However each compound would always have a distinct way of bonding. By drawing out the structural formular of a molecule, we are pretty much just showing the arrangement of the bonded atoms. That is the primary detail in which a structural formular reveals.

Metallic bonds are generally bonds between metals and that can be obtained by checking if the compound has a metal.

Ionic bonds are bonds that result from the transfer of electrons between a metal and a non metal. By looking at the way the atoms are bonded, we can tell if that bond is an ionic or covalent. This is a secondary information revealed by the structural formula.

Shapes of Molecular orbitals are given by the molecular orbital diagrams and not the structural formular.

Misha Larkins [42]3 years ago

6 0

Answer : Option A) the arrangement of bonded atoms.

Explanation : A structural formula of certain molecule depicts the way the atoms are arranged in that particular molecule in any polyatomic species. It helps in deciding the chemical properties of that polyatomic molecule.

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How many atoms are in 1.4 mol of phosphorus trifluoride (PF3)?

joja [24]

Number of atoms in 1.4 mol of Phosphorus trifluoride (PF₃) : 8.428 x 10²³

<h3>Further explanation </h3>

The mole is the number of particles(molecules, atoms, ions) contained in a substance

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

1.4 mol of Phosphorus trifluoride (PF₃), number of atoms :

$\tt N=1.4\times 6.02\times 10^{23}\\\\N=8.428\times 10^{23}$

5 0

3 years ago

Please ignore my answers because they are wrong.

earnstyle [38]

Answer:

The wavelength of the radio wave is 3.003 m.

The energy of the radio wave is $6.6194\times 10^{-26} J$ .

Explanation:

Frequency of the radio waves, ν = 99.9 MHz = $99.9\times 10^6 Hz$

Wavelength and frequency are related to each other by realtion:

$\lambda =\frac{c}{\nu }$

$\lambda$ = Wavelength of the wave

c = speed of the light

ν = Frequency of the wave

$\lambda =\frac{3\times 10^8 m/s}{99.9\times 10^6 s^{-1}}=3.003 m$

The wavelength of the radio wave is 3.003 m.

The energy of the electromagnetic wave is given by Planck's equation:

$E=h\times \nu$

h = Planck's constant = $6.626\times 10^{-34} Js$

The energy of the radio wave with 99.9 MHz frequency will be:

$E=6.626\times 10^{-34} Js\times 99.9\times 10^6 s^{-1}$

$E = 6.6194\times 10^{-26} J$

The energy of the radio wave is $6.6194\times 10^{-26} J$ .

4 0

3 years ago

If the atomic number of an element is 8 and the mass number is 16, the number of neutrons in an atom of that element is what? (s

Serjik [45]

Answer:

Explanation:

Atomic number tells us the number of protons in an element. Mass number is the total amount of mass in an atom, and it comes from the sum of the mass of protons and neutrons, which are both considered to have a mass of 1 amu.

If the total mass is 16amu and 8amu comes from the 8 protons, the remaining mass comes from neutrons.

16 - 8 = 8

5 0

3 years ago

Can a particle be a single atom? Explain...

pogonyaev

no, it contains 3 basic particles. (protons, electrons, neutrons)

hope this helped

5 0

3 years ago

How would you describe where this question is located on the page? Give two different answers using two different reference poin

Tatiana [17]

The question is located at the end of the page or it is located below the section "with a reference point".

<h3>What is a reference point?</h3>

As explained in the text, this is a known point or location used to describe the location of an object.

<h3>What is a reference point if you want to describe the location of the question on the page?</h3>

In this case, some of the reference points you can use include the other sections in the page or the page itself.

Based on this, two possible locations are:

The question is located at the end of the page (It uses the page as a reference point).
The question is located below the section "with a reference point" (it uses a section as a reference point).

Learn more about location in: brainly.com/question/13376711

6 0

2 years ago