The structure is attached below.
<h3><u>Explanation:</u></h3>
Lewis dot structure was invented by Scientist Lewis which mainly focused on the distribution of electron on outermost shell around an atom in a molecule. It represented the atoms by their symbols and the Electron by dots. The bonds between the atoms are expressed by a straight line.
Around sulphur are 6 electrons on the outermost shell. In SF₆, the hybridization is sp³d². So there are 6 fluorine atoms around Sulphur with which fluorine forms 6 covalent bonds.
It seems that the question is lacking hypothesized structures, which are provided in Figure A
Answer:
Option A has bond angles that have the highest strain beyond known tolerance
Explanation:
Note: Please find the complete question in the attachment
The hypothesized structures in the options were the proposed structures of benzene in the mid 19th century by Ladenburg (1869), Thiele (1899), Armstrong (1887), and Kekule (1865) respectively
Option A suggests sp3 hybridization of the carbon atom. sp3 hybridized atoms are oriented at 109.5° to be stable. The structure suggests that bond angles between C-C bonds are 60° and 90°, these bond angles are well beyond the known tolerable angle strain.
Options B and D (currently accepted structures of benzene) are sp2 hybridized and their bonds angle is 120°, which is the optimal angle for sp2 hybridized atom. Option C also suggests sp2 hybridized carbon, so their will also be no ring strain in it. But it is not an accepted structure as it was suggested to contain radical like properties by Armstrong.
The correct answer is Cl.
Chlorine is a substance that's employed in industry and is present in a number of household goods. There are times when chlorine takes the form of toxic gas. Chlorine gas can be converted into a liquid by applying pressure and cooling so that it can be transported and stored. The term "oxidation number" refers to the number of electrons that an element's atom either loses or gains during the production of a compound. The charge that an atom seems to have when forming ionic connections with other heteroatoms is used to define an atom's oxidation number. Even if it develops a covalent bond, an atom with a higher electronegativity is given a negative oxidation state.
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The deltaHrxn = -243 kJ/mol the deltaHrxn of CH4(methane) = -802 kJ/mol
The fuel that yields more energy per mole is METHANE. The negative sign merely signifies the release of energy. Thus, 802 kJ/mol is greater than 243 kJ/mol.
The fuel that yields more energy per gram is HYDROGEN. Here is the computation:
deltaHrxn = (-243 kJ/mol)(1 mol/2.016 g H2) <span>= -120.535714286 kJ/g or -121 kJ/g
</span>deltaHrxn of CH4(methane) = (-802 kJ/mol)(1 mol/16.04 g)
<span>= -50 kJ/g
</span>
As discussed the negative sign serves as the symbol of released energy. Thus, 121 is greater than 50.
bacterial growth
Explanation:
Excessive bacterial growth is one of the example of a natural process that causes water pollution.
Pollution is the undesired concentration or harmful introduction of a particular body into the environment and causes harm overall.
- Pollution can result from both natural and anthropogenic sources.
- Anthropogenic causes of pollution are the most common due to activities of human beings.
- Natural causes of pollution results from the activities of nature in itself.
- From the given options, the bacterial growth is an natural process of pollution.
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