1.This section is about the type of electrolytes and how to determine if they are strong or weak. Aditionaly we learn about molarity and its equation, as well as precipitation reactions based on solubility. Lastly acid, base, and neutralization reactions are briefly discussed and defined.
2.keywords on google:
a. Molarity: coppied “number of moles of solute”
b. Solubility guidelines: nothing
c. Neutralization reactions: same reaction is online and only a slight word change is made when defining neutralization reaction.
3.This section is very well written and well organized; however, I bleive that more information could be added. I think you could explain molarity in more depth, showing examples of how to use this in coversions, as well as talk more about neutralization reactions. Additionaly you forgot to put the answers to the problems. Grammatically I only noticed one error which I corrected. Other than that, good job!

Reviewer Name: Cathy Trang
1. Synopsis: An aqueous solution is a solution that contains water as the solvent. Substances that are dissolved in water are called a solute. When a solute is dissociated it ions are formed which is called electrolytes. If the solution is completely ionized or dissociated they are strong electrolytes, if they are partially dissociated then they are weak electrolytes. Majority of the time, strong acids and most soluble ionic compounds, along with a few molecular compounds are considered to be strong electrolytes. Molecular compounds in general are either weak electrolytes or nonelectrolytes. Nonelectrolytes are poor conductors of electricity. When the substance cannot dissolve in water, precipitation is formed. Using the solubility rules precipitation can be predicted. If there is no precipitation then it is considered to be no reaction.

2. Keywords: “electrolytes,” “precipitation reactions,” aqueous solutions”

3. Review Details: First of all, the length of your module is not bad. It seems to have a decent amount of information. Your introduction fits the criteria of a couple sentences on introducing what your module is going to be about but it is a bit confusing the way you worded it. It is a bit unclear on the definition of what an aqueous solution. Try rewording it to gain the same effect of a brief overview. Maybe you can add that water is a universal solvent or mention where the word, aqueous came from. You can add this either there or when you start off with the first section of electrolytes. The last sentence of your introduction is a bit irrelevant to the rest of the module because it doesn’t explain much about living systems. It’s sort of a random fact thrown in there as if it was used for a little filler or. It seems to me that you tried to use it as a concluding thought. Try something that will lead more into your module instead. Overall your module can be reworded a little to make it easier for a person with no background in this subject understand. When you wrote about electrolytes, try to organize it in a way where it is a bit easier to comprehend as well as helping it flow more. In the section of ion Concentration, you should write the formula in formula style or separate it from the text to make it easier to read and to spot. You can also add other names for substances that do not dissolve in water and substance that do dissolve in water are called hydrophobic and hydrophilic. You can also add a picture showing the ionization of a fully dissociated solution and a partially dissociated solution. This will help the reader understand the materials better because it will give them a visualization of what is going on. You have a spelling error in the acids and base section. Of should be off. You should maybe change some parts so you don’t repeat words. For example you can say that acid is a donor because it donates the H+. Overall, it’s not bad. You do portray some straight forward points. edited 12:13, 4 Dec 2009

Reviewer: Zachary Mar

1. Synopsis
The Unique Features of an Aqueous Solution module primarily describes the significant phenomenon that occurs when solutions are in water. The module explains how water, as a solvent, can house the dissociation of ions in a solute to form electrolytes. This then makes the solution a good electrical conductor. The module also talks about how precipitation forms when the product of an aqueous solution is insoluble. The three keywords are electrolytes, precipitation, and acids and bases.

2. This module is ready for Vet2 level. There are no misspellings and the information is explained clearly and concisely. The topics are split into just the right groups such that there is minimal confusion. Examples are also given after each explanation to insure understanding.

3. Review
Overall, the module does well to pinpoint the unique features of aqueous solutions. There are no figures, however there are examples of chemical equations that complement the explanations well.

One thing in particular that the module had was a clarity of vocabulary. Words were bolded clearly to show importance of terms.

In general, most of this module attempts to give rules and patterns of aqueous solutions, so I believe that the tables of solubility rules and strong acids vs. strong bases are essential for the purposes of this module. It could perhaps be a bit more in depth, but in the end very good.

1. Water is a solvent, a good conductor of electricity (as long as it is not pure and contains ions), and is an electrolyte. A general rule for determining if a substance is an electrolyte is to question whether the compound can dissociate. If a compound can dissociate completely (soluble), it is usually a good electrolyte and vice-versa. Also, strong bases and strong acids are strong electrolytes. When an H+ ion interacts with a water molecule, the molecule is hydrated. In order to find ion concentration given the concentration of its compound, simply multiply the concentration of the compound by the number of moles of the ion. Precipitation reactions are those where an insoluble compound is a product of two aqueous reactants. Acids decompose into H+ ions, while Bases decompose into OH- ions. In neutralization reactions, acids and bases cancel each other out and produce water and a salt.

2. It is not yet ready to go on to the next level. There aren’t any misspellings that I have recognized in the module; however, the paragraphs that introduce Electrolytes, Ion Concentrations, and etc. could use some editing. The electrolyte paragraph has the information that needs to be present, but it is not very clear. The following sections are clear.

3. Tables Questions
3a. The headings make sense and are understandable.
3b. The table has no title, but it is not necessary.
3c. The table is not referenced by a number, but its placement is clear.
3d. Tabular format is the best way to present Strong Acids and Strong Bases.
3e. No additional table is needed; the only table needed is already provided.
Text Questions
3f. It is not easy, but not difficult to follow. It is adequate, but could be improved. For example, rephrase “It has a smaller number of particles that are randomly placed in the solution.” Explain what the saturation of a solute is. Give specific names to the placement. Is it a homogeneous mixture? This sentence is very vague, either take it out or revise it. Other sentences could be organized better.
3g. They do not have topic sentences; the writer jumps into a topic. However, due to the breadth of information in a given subsection, it is quite difficult to come up with a universal topic sentence that is of significant value. I do not hold this against the writer.
3h. There aren’t any grammatical or spelling errors that I could find, but some sentences can be revised.
3i. There is a logical organization; different types of aqueous solutions are observed.

4. Fixed sentence from” Water is the solvent in an aqueous solution, meaning that the molecules are tightly packed.” to “Water is the solvent in an aqueous solution, meaning that water is the substance that dissolves the solute.”

5. Not Plagiarized

6. No Images. edited 16:21, 27 Nov 2010

1. Synopsis: Aqueous solutions are composed of a solute, ie what is being dissolved, and a solvent, ie what the solutes being dissolved in. Generally, water is the solvent. Electrolytes are dissociated ions found within a solution. Those that dissociate readily, and thus are good conductors of electricity, are known as strong electrolytes. Likewise, solutes that don’t readily disassociate into ions and thus aren’t good conductors of electricity are known as weak electrolytes. There are a list of solubility rules that determine whether a reaction will or will not occur. If a solid is formed as a product of the reaction, a reaction will take place. If all of the products are soluble, the reaction will not likely occur.
2. I noticed that the wrong from of “their” was used in the article, so I fixed this. Everything seems to have been spelt correctly.
3. Figures
The list of solubility rules is helpful. It might beneficial to also include a table or visual diagram of these rules. This would be helpful for visual learners.
A picture exemplifying the difference between a solute and solvent might also be helpful.

Text
Although concise and to the point, I might expand some on the introduction. Under the “Molarity” section, I would label what the variables “n” and “V” stand for (in the molarity equation). Although their meaning can be deducted from the text, it would be helpful to be more clear.
4. I made some edits to the “Electrolyte” section of the article.
5. Using the sites suggested, I checked the article for plagiarism. The article seems to be of original work.
6. There aren’t any images in the article.