Two scientists wrote a paper detailing their research and conclusions and submitted it to a scientific journal. Several months later, they received the paper back from the publisher with many comments attached from several fellow scientists. What is most likely the next step taken by the authors of the paper?

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Answer 1

Answer: Two scientists wrote a paper detailing their research and conclusions and submitted it to a scientific journal. Several months later, they received the paper back from the publisher with many comments attached from several fellow scientists. It is either that they revise their study or replicate the study. Most scientists would revisit their work and the findings they had from their research. Most probable if they were successful and the comments of the publisher and the co-scientists were positive they could replicate the study to validate its accountability.

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According to VSEPR theory, what causes water molecules to have a bent shape? A. the unusual location of the free electrons. . B. repulsive forces between specific lone pairs of electrons. . C. attraction between the fixed orbitals of the unshared pairs of oxygen electrons. . D. ionic attraction and repulsion

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According to VSEPR theory, what causes water molecules to have a bent shape?

Answer: Out of all the options presented above the one that best represents what causes water molecules to have a bent shape according to VSEPR theory is answer choice B) repulsive forces between specific lone pairs of electrons. the bond angle in a water molecule is bent.

I hope it helps, Regards.

The correct answer is $\boxed{{\text{option }}\left( {\text{B}} \right)}$ that is repulsive forces between specific lone pairs of electrons.

Further Explanation:

The total number of valence electrons of ${{\text{H}}_2}{\text{O}}$ is calculated as,

Total valence electrons (TVE) = [(1) (Valence electrons of O) + (2) (Valence electrons of H)]

$\begin{aligned}{\text{Total valence electrons}}\left( {{\text{TVE}}}\right)&=\left[{\left({\text{1}}\right)\left({\text{6}}\right)+\left({\text{2}}\right)\left({\text{1}}\right)}\right]\n&=8\n\end{aligned}$

In ${{\text{H}}_2}{\text{O}}$ , the total number of valence electrons is 8. Here, oxygen forms single bond with the hydrogen atom and therefore, 2 pair of electrons are used in the formation of two single bonds with hydrogen atom. Remaining 2 pair of electrons are used to complete the octet of oxygen atom. Therefore, ${{\mathbf{H}}_{\mathbf{2}}}{\mathbf{O}}$ contains two bond pairs and two lone pairs (refer to the image attached).

According to the VSEPR theory, central atom oxygen has two bond pair with two lone pair, therefore, ${{\text{H}}_2}{\text{O}}$ has an ${\text{A}}{{\text{B}}_2}{{\text{E}}_2}$ arrangement. Therefore, these four pairs of electrons spread out as tetrahedral arrangement to minimize lone pair-lone pair and bond pair-bond pair repulsion. Since lone pairs are not considered in the shape of the molecule and therefore, the final shape of water molecule is bent-shape.

Learn more:

1. Molecular shape around the central atom in the amino acid glycine: brainly.com/question/4341225

2. Balanced chemical equation: brainly.com/question/1405182

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Covalent bonding and molecular structure

Keywords: hybridization, water, geometry, sp3, steric number, 3, p orbital, s orbital, Lewis structure, hybridization of water, central atom, carbon, hydrogen, oxygen, shape, double bond, h2o.

A gas changes directly to a solid during(1) fusion (3) saponification(2) deposition (4) decomposition

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Answer is: deposition.

Deposition is a thermodynamic process in which gas transforms into solid without passing through the liquid phase.

For example, forming snow in clouds directly from water vapor.

During deposition phase change, energy is released.

Another example, the phase change H₂(g) → H₂(s) is called deposition and the enthalpy change, ΔH, for this phase change has a negative (-) sign.

A gas changes directly to a solid during deposition, hence option 2 is correct.

How does Deposition take place?

Deposition is the process by which a substance goes straight from the gas to the solid state after cooling, bypassing the liquid state. Examples of substances that undergo deposition include naphthalene, camphor, iodine, and ammonium chloride.

The opposite is sublimation, through this process, a gas can become a solid without ever entering the liquid state. When gas particles get extremely cold, it happens.

Learn more about Deposition here:

brainly.com/question/1470616

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Large cities often have a visible haze hanging in the air high above them. What most likely causes this haze? a. many women's aerosol hairsprays

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Haze is caused by particulate matter from incomplete combustion of car, truck, bus, burning of gasoline and diesel. This could also be caused by the buning of wood, coal, and heating oils from industry, electical generation plants that do not collect some of the pollutants at the smoke stack or exhaust points.

Fe2O3+2Al=Al2O3+2Fe A welder has 1.873 × 10^2 g Fe2O3 and 94.51 g Al in his welding kit. Which reactant will he run out of first? (options: Fe2O3 or Al.......it's Fe2O3). How much of this reactant should he order to make sure he runs out of both reactants at the same time? He should order ___g of the limiting reactant.