The list of 4 things can increase the rate of a reaction is:
surface area of a solid reactant.
concentration or pressure of a reactant.
temperature.
nature of the reactants.
presence/absence of a catalyst.
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Answer:
c. estrogen > propanol > alanine > sodium
Explanation:
The phospholipid bilayer is formed by amphoteric lipids, the nonpolar region is inside the bilayer, so the diffusion of nonpolar molecules are easy (nonpolar reacts with nonpolar) and generally occurs passively (without loss of energy). With the increase of the polarity, the diffusion became difficult and slow. All the molecules are shown below.
Estrogen has two points of polarity in its hydroxides, but the carbon rings stabilize the molecule, and it has low polarity. Then, propanol has only one hydroxide and is the second-lowest polar molecular. Alanine has two points of polarity because oxygen and nitrogen have high electronegativities. Then, the ion sodium has a charge and has no stabilization such as the molecules, so it is the most difficult to diffuse.
Can you post the picture of the structure of pyrollium. because my teacher has taught us to determine if it is aromatic cyclic or conjugated by looking at the structure of the molecule.
While ethanol being an alcohol does have a direct O−H connection. Hence, ethanol has intermolecular hydrogen bonds. Therefore, more stroger physical bonds have to be destroyed in ethanol, than in acetone. Hence, acetone evaporates faster than ethanol inspite of having higher surface tension.
<h3>What is Vapor pressure ?</h3>
The pressure that a vapour exerts on the condensed phases (solid or liquid) in a closed system when they are in thermodynamic equilibrium with one another is known as vapour pressure (or equilibrium vapour pressure).
- It is significant to remember that when a liquid boils, the pressure of its vapour equals the atmospheric pressure. For instance, the vapour pressure of water when it boils at sea level is 1 atmosphere because the surrounding pressure is also 1 atmosphere.
Learn more about Vapor pressure here:
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C. the sun is continuously releasing energy.