Category: Chemistry

Check the pdf given below.
Create a video with a voice over or just with pictures with captions/music or
of you speaking.

Just complete the questions on the guidelines. there are guidelines, module 2 and module 4. just write ur anser underneath each question on both guidelines. the screenshots of the manuals 2 and 4 to help are below. Be sure to fill out the separation schemes
Important Info

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Please see attachment with instructions on how to complete the Lab. Complete the Lab inside the website and notify when complete please.

Hydrogen and oxygen combined in ratio of 1:8 by mass to form water. What mass of o2 gas would be required to react completely with 3 g of hydrogen gas?

Objects don’t fuse to your finger when you touch them primarily because of the molecular forces involved and the structure of the materials involved.
Surface Properties: Most objects have surface properties that prevent them from adhering strongly to other surfaces. These surface properties are due to factors like roughness, chemical composition, and surface energy. These factors determine how strongly two surfaces will stick together when they come into contact.
Intermolecular Forces: Intermolecular forces are the attractive forces between molecules. When you touch an object with your finger, the molecules on the surface of your finger and the molecules on the surface of the object interact through these intermolecular forces. However, these forces are generally not strong enough to cause the two objects to fuse together permanently.
Friction: Friction between the surfaces of your finger and the object also plays a role. Friction opposes the relative motion of the surfaces in contact. While friction can create a temporary bond between surfaces, it is typically not strong enough to cause fusion.
Mechanical Properties: The mechanical properties of the materials also play a significant role. Even if two surfaces were to adhere strongly due to some combination of surface properties and intermolecular forces, the mechanical properties of the materials would likely prevent them from fusing permanently. For example, one of the materials may deform or break before fusion occurs.
Overall, the lack of fusion between objects and your finger when you touch them is a result of a combination of surface properties, intermolecular forces, friction, and mechanical properties of the materials involved. These factors prevent objects from sticking or fusing to your finger in most cases.

Objects don’t fuse to your finger when you touch them primarily because of the molecular forces involved and the structure of the materials involved.
Surface Properties: Most objects have surface properties that prevent them from adhering strongly to other surfaces. These surface properties are due to factors like roughness, chemical composition, and surface energy. These factors determine how strongly two surfaces will stick together when they come into contact.
Intermolecular Forces: Intermolecular forces are the attractive forces between molecules. When you touch an object with your finger, the molecules on the surface of your finger and the molecules on the surface of the object interact through these intermolecular forces. However, these forces are generally not strong enough to cause the two objects to fuse together permanently.
Friction: Friction between the surfaces of your finger and the object also plays a role. Friction opposes the relative motion of the surfaces in contact. While friction can create a temporary bond between surfaces, it is typically not strong enough to cause fusion.
Mechanical Properties: The mechanical properties of the materials also play a significant role. Even if two surfaces were to adhere strongly due to some combination of surface properties and intermolecular forces, the mechanical properties of the materials would likely prevent them from fusing permanently. For example, one of the materials may deform or break before fusion occurs.
Overall, the lack of fusion between objects and your finger when you touch them is a result of a combination of surface properties, intermolecular forces, friction, and mechanical properties of the materials involved. These factors prevent objects from sticking or fusing to your finger in most cases.

Assignment 1: The Annotated Bibliography
Objective: Assess sources for your research for your final presentation (for credibility, reliability, and relevance) and list references in proper APA format
Assignment Instructions: The Research Project/Presentation for this class is divided into three major Assignments, 1) annotated bibliography, 2) outline and 3) final presentation. The first part is the annotated bibliography. An annotation is a summary and evaluation, and your annotated bibliography will include a summary and evaluation of some of the sources (or references) you will use for your presentation.
To prepare for this assignment, I recommend that you do the following:
Read these directions carefully.
Review the sample annotated bibliography provided to you below.
Message me using Classroom Support with any questions!
The reason the annotated bibliography is included as part of the research project is that writing an annotated bibliography is important in that it provides excellent preparation for the final presentation. One of the issues regarding any type of research, especially in chemistry, is the credibility of the sources used, particularly those obtained from various websites. By forcing you to evaluate each of your potential sources carefully, the annotated bibliography helps you determine if in fact the source you chose is credible and helps you determine how relevant it is to your topic and understand the topic better which will help you develop your presentation.
For this project, you will assess three sources to include:
1) a complete citation for each source,
2) a summary of each source, and
3) an evaluation of each source.
Three sources are required for this assignment (i.e., you are to write an annotation for each source). However, you must use five or more sources in your final presentation.
Use this TEMPLATE to summarize and evaluate each of your three sources.
Citation:
Written in APA reference list format. For more help with formatting, see APA handout.
Summary:
What is the purpose of the source, review article, original research? What topics are covered? This section is generally 4-6 sentences that summarize the author’s main point. For more help, see this link on paraphrasing sources.
Evaluation:
After summarizing the article (or research paper or book), it is necessary to evaluate it and state where you found it – its source (e.g., journal, website, etc.). Briefly answer the following questions in 4-6 sentences:
What is the format or type of source (e.g., peer-reviewed journal paper, website, book)? How reliable is the information in the article, and how credible is the source (e.g., website’s sponsoring organization, journal or book publisher) and the author(s)?
For more help, see this handout on evaluating resources.
Additional Resources:
Sample Annotated Bibliography
Also, please see the resources below at The Owl at Purdue site for more information on how to write an annotated bibliography as well as other pages on the site to assist you with the other parts of the research paper:
Annotated Bibliographies
[Annotated Bibliography Example]
[Annotated Bibliography Samples]
Evaluation: Please review the Annotated Bibliography Grading Criteria that describes how your annotated bibliography will be graded.

Pre-Lab Laboratory Experiment 8 Study the Laboratory Experiment 8 Write-Up Download Laboratory Experiment 8 Write-Up and then do the Laboratory Experiment 8 Pre-LabDownload Laboratory Experiment 8 Pre-Lab for this experiment. All grades are to a large extent (50% for Pre-Labs) based upon your work being thorough, complete and of good quality; you need to be showing me all of the relevant work in getting to the questions answers. Good work includes showing all of the units throughout every calculation. Being too brief is the equivalent of being incomplete. 2) Laboratory Experiment 8 If you have not already done so then study the Laboratory Experiment 8 Write-UpDownload Laboratory Experiment 8 Write-Up and then do the Laboratory Experiment 8 Pre-LabDownload Laboratory Experiment 8 Pre-Lab for this experiment. Collect the necessary data while watching these videos below and record the data on the Laboratory Experiment 8 Data SheetDownload Laboratory Experiment 8 Data Sheet. Write up a formal Laboratory Report following the required format Video 1 => Preparation of Copper I Chloride pt1= https://www.youtube.com/watch?v=U18qzpmCrvU Video 2 => Preparation of Copper I Chloride pt2= https://www.youtube.com/watch?v=Y_gWDLlzohU Most missed points are due to not explaining the experiment in the Discussion (look in your textbook and the lab experiment “write up” to see examples of how the principles of the experiment are explained)

Additional Questions (Show Work)
1. What is the density of a 65.00-g object that is immersed in a graduated cylinder whose
water volume rises from 28.3 mL to 45.6 mL?
2. A flask that weighs 218.5 g is filled with 125.5 mL of NaCl solution. The total weight of the
flask and NaCl solution is found to be 354.6 g. Calculate the solution density.
3. Three beakers contain different volumes of water of 8.1 cm3, 0.64 L, and 2.7 dL. If all
three volumes were mixed together in a larger container, what would the final volume in
milliliters be?
4. What is the volume of a 0.240-lb sample of ethyl alcohol if its density at the temperature
in question is 0.739 g/mL?
5. The usual dose of amoxicillin for children and babies older than 3 months, who weigh
less than 40 kg, is 20 to 40 milligrams (mg) per kilogram (kg) of body weight per day,
divided and administered every 12 hours. If the drug amoxicillin is 125 mg / 2.5 mL oral
suspension, how many teaspoons in 24 hours should be given to a child who weighs 54
pounds for the maximum dose? (One teaspoon is 5 mL)

Select a source of chemistry information from the open web (the topic can be any topic related to chemistry or that of your research topic).
Evaluate the source and explain why it is or is not a credible source of information.
Provide a reference in APA format.
Use the name of your source as the title of your discussion post. You cannot use a source that one of your classmates has already used as a topic for their initial discussion post.