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Chemistry Assignments
Assignment: Propertiesi will send the images separately For each of the objects list six physica ...
Chemistry Assignments
Assignment: Propertiesi will send the images separately For each of the objects list six physical properties of the object.Identify each property as extensive (E) or intensive (I) and describe how you know it is an intensive or extensive physical property.Then, select one property you identified for each object and describe, in detail, how you would test that property.For example, if you determined that a metal rod is very dense, how would you measure its density?Record your answers in the template provided and submit them to the Assignment: Properties link for grading. For more information on how this will be graded, please view the grading rubric.Section Warm-UpJournal: Seltzer in Water[img alt="A seltzer tablet in water." src="http://static.k12.com/eli/bb/334/2_23579/1_124930_4_23583/634a35ff424938d285f15dd8d832abf31af3e831/media/33db7dd8daaa6dc72d1d5e4ca5bce6198a5e020e/mediaasset_630661_1.jpg" title="A seltzer tablet in water.">In your house, grab a small cup of water, some seltzer tablets, and a thermometer. Over-the-counter heartburn or cold remedies will work for the seltzer tablets—just look for the ingredients, sodium bicarbonate and citric acid.Before doing anything, write down some physical characteristics of each substance (the water and the tablet).Then, take the temperature of the water.Now, add the seltzer tablets to the water, leaving the thermometer in the water.Answer the following questions in your journal:What happens?What does the final product look like?Is it still water? How do you know?Did a physical change take place? How do you know? Was there a temperature change during the event?Write down your observations and answers to these questions in your journal and submit to the Journal: Seltzer in Water assignment link for grading. For more information on how this assignment will be graded, please view thejournal rubric.Lab IntroductionPaper is an amazing material. Most paper is made from the cellulose fiber obtained from trees or other woody plants. Unlike wood, you can fold paper, tear it, or dissolve it in water. Each of these changes made to the paper is classified as a physical change.Paper, like the wood it is made from, can also burn in the presence of oxygen and enough heat– this is considered a chemical change. In this laboratory experiment, you will observe the physical and chemical changes that a substance can undergo.Lab InstructionsTime Requirements: approximately one hourProcedures:Follow the lab instructions to perform the laboratory investigations. As you perform your experiment, record everything in this lab instruction sheet.Use the checklist to make sure all parts of the lab are complete.Read through the lab introduction.Complete the pre-lab questions.Read through the lab instructions completely before setting up the materials for your experiment.Conduct the experiment.Complete the calculations (if any) and answer the post-lab questionsLab ObjectivesAfter you have completed this laboratory, you will be able to:Recognize the differences between chemical and physical changes.Determine if a change is physical or chemical.Lab: Chemical and Physical ChangesCongratulations on completing this lab! In this lab, you learned about:Laboratory procedures to separate and combine chemicalsThe physical and chemical properties of a substanceNow it is time to turn in your lab instruction sheet. Make sure you have filled in all the relevant information and answered all the post-lab questions. Submit your lab report to the Lab: Chemical and Physical Changes assignment link for grading. For more information on how this assignment will be graded, view the Lab Rubric.Exploratory Activity: ChromatographyMaterials:Forensic scientists use chromatography on ink pens to tell if a document was written with a specific pen. This can provide direct evidence in many types of cases. For example, if a ransom note was found, forensic scientists would analyze the ink using chromatography.If a suspect was found with a pen that showed the same chromatography pattern, the forensic scientists would have strong evidence to suggest that suspect wrote the ransom note. Let’s see how forensic scientists would test a pen. You will need only a few simple household materials.Two coffee filtersTwo different black markers (NOT permanent markers)SaucerWaterActivity WorksheetProcedure:Using one of the black markers, place a dot in the center of the filter paper.Place the filter paper on the saucer.Put a few small drops of water on the spot.Wait a few minutes…what did you see?Now, using the other black marker and the other coffee filter, repeat the procedure. What did you see this time?Many black inks are made up of several dyes. Explain any differences you saw between the two markers.Did the components of the inks separate differently?Are any of the component colors the same in both of your markers?Answer these questions in the exploratory activity worksheet and submit your worksheet to the Exploratory Activity:Chromatography assignment link for grading. For more information on how this assignment will be graded, please view the rubric.Lab IntroductionYou’ve just poured yourself the last bowlful of your favorite breakfast cereal – Up & Atom. While working your way through the first few spoonfuls, you discover, from the information on the box, that each bowl contains your complete daily allowance of iron. Is there some way you can prove the cereal manufacturers statement? You’ve already added milk to the cereal. How would you separate out this mixture to measure the iron content? This lab will walk you through some of the processes for separating mixtures.Lab ObjectivesAfter you have completed this laboratory, you will be able to:Use physical properties to separate the components of a mixture.Use laboratory techniques to separate the components of a mixture.Lab InstructionsTime Requirements: approximately 1.5 hourProcedures:Follow the lab instructions to perform the laboratory investigations. As you perform your experiment, record everything in this lab instruction sheet.Use the checklist to make sure all parts of the lab are complete.Read through the lab introduction.Complete the pre-lab questions.Read through the lab instructions completely before setting up the materials for your experiment.Conduct the experiment.Complete the calculations (if any) and answer the post-lab questions
The Behaviors Apparent for Each Disorder ODD and ADHD Ryan Case Study
would become very upset and throw temper tantrums when he could not do as he wished. He just seemed to be an unhappy, irri ...
The Behaviors Apparent for Each Disorder ODD and ADHD Ryan Case Study
would become very upset and throw temper tantrums when he could not do as he wished. He just seemed to be an unhappy, irritable child. This behavior continued in school. As time progressed, Ryan was diagnosed with Oppositional Defiant Disorder, because he continued to refuse to listen to adults and comply with the rules.By the age of 12, he has begun to bully and annoy others. His parents have decided that the approaches they have used in the past are not working, and they are more afraid his behavior will only get worse.Initial PostProvide explanations for these questions and statements:Describe the behaviors apparent for each disorder in this scenario (Attention Deficit Hyperactivity Disorder and Oppositional Defiant Disorder).If this behavior becomes worse and Ryan starts to violate the rights of others, what medical diagnosis will be given and why?Discuss at least two types of medication appropriate to treat Ryan and support your choices with rationale and credible resourcesDescribe why therapy for the parent is important in this scenario including at least two supporting rationales.Response PostsReview the posts of two classmates.In each post identify new knowledge gained.Describe how this new knowledge will impact your nursing practice including specific examples and credible resourcesPlease make your initial post by midweek, and respond to at least two other student's post by the end of the week. Please check the Course Calendar for specific due dates.
Relationship between two species and viruses by genetic reassortment
I. In California, Pacific Northern rattlesnakes prey on California ground squirrels. Their relationship is a great exampl ...
Relationship between two species and viruses by genetic reassortment
I. In California, Pacific Northern rattlesnakes prey on California ground squirrels. Their relationship is a great example of co-evolution. Read the article about their relationship found at https://news.osu.edu/how-is-rattlesnake-venom-like-fine-wine-both-have-regional-varieties/, and then address the following questions: Explain why the relationship between these two species is considered an example of co-evolution.What did you find most interesting or significant about how the rattlesnake population adapts to the squirrel’s defenses against its venom? II. Read the following recent article from MIT News about tracking the spread of bird flu that discusses the impact of reassortment: http://news.mit.edu/2017/tracking-spread-bird-flu-alaska-north-america-0317. Next, address the following: Discuss the factors that make Alaskan waters in the summertime an optimal place and time for new strains of influenza to arise by genetic reassortment.What do you think is the most interesting aspect of this situation?
Policy for reporting contagious diseases, science assignment help
You have done a great job preparing to be assigned by WHO to a remote site where you will set up your field lab. Is there ...
Policy for reporting contagious diseases, science assignment help
You have done a great job preparing to be assigned by WHO to a remote site where you will set up your field lab. Is there anything else you need to be prepared? As much as having the right equipment, supplies, and knowledge about microorganisms, it is also important to know who to notify and what communication channels exist for reporting disease outbreaks. Discuss the policy for reporting contagious diseases that break out in a country where you are located
2 pages
Lab Energy
Got to the PhET lab on Energy: https://phet.colorado.edu/sims/html/energy-skate-parkbasics/latest/energy-skate-park-basics ...
Lab Energy
Got to the PhET lab on Energy: https://phet.colorado.edu/sims/html/energy-skate-parkbasics/latest/energy-skate-park-basics_en.html 1. Place the skater ...
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Most Popular Content
Chemistry Assignments
Assignment: Propertiesi will send the images separately For each of the objects list six physica ...
Chemistry Assignments
Assignment: Propertiesi will send the images separately For each of the objects list six physical properties of the object.Identify each property as extensive (E) or intensive (I) and describe how you know it is an intensive or extensive physical property.Then, select one property you identified for each object and describe, in detail, how you would test that property.For example, if you determined that a metal rod is very dense, how would you measure its density?Record your answers in the template provided and submit them to the Assignment: Properties link for grading. For more information on how this will be graded, please view the grading rubric.Section Warm-UpJournal: Seltzer in Water[img alt="A seltzer tablet in water." src="http://static.k12.com/eli/bb/334/2_23579/1_124930_4_23583/634a35ff424938d285f15dd8d832abf31af3e831/media/33db7dd8daaa6dc72d1d5e4ca5bce6198a5e020e/mediaasset_630661_1.jpg" title="A seltzer tablet in water.">In your house, grab a small cup of water, some seltzer tablets, and a thermometer. Over-the-counter heartburn or cold remedies will work for the seltzer tablets—just look for the ingredients, sodium bicarbonate and citric acid.Before doing anything, write down some physical characteristics of each substance (the water and the tablet).Then, take the temperature of the water.Now, add the seltzer tablets to the water, leaving the thermometer in the water.Answer the following questions in your journal:What happens?What does the final product look like?Is it still water? How do you know?Did a physical change take place? How do you know? Was there a temperature change during the event?Write down your observations and answers to these questions in your journal and submit to the Journal: Seltzer in Water assignment link for grading. For more information on how this assignment will be graded, please view thejournal rubric.Lab IntroductionPaper is an amazing material. Most paper is made from the cellulose fiber obtained from trees or other woody plants. Unlike wood, you can fold paper, tear it, or dissolve it in water. Each of these changes made to the paper is classified as a physical change.Paper, like the wood it is made from, can also burn in the presence of oxygen and enough heat– this is considered a chemical change. In this laboratory experiment, you will observe the physical and chemical changes that a substance can undergo.Lab InstructionsTime Requirements: approximately one hourProcedures:Follow the lab instructions to perform the laboratory investigations. As you perform your experiment, record everything in this lab instruction sheet.Use the checklist to make sure all parts of the lab are complete.Read through the lab introduction.Complete the pre-lab questions.Read through the lab instructions completely before setting up the materials for your experiment.Conduct the experiment.Complete the calculations (if any) and answer the post-lab questionsLab ObjectivesAfter you have completed this laboratory, you will be able to:Recognize the differences between chemical and physical changes.Determine if a change is physical or chemical.Lab: Chemical and Physical ChangesCongratulations on completing this lab! In this lab, you learned about:Laboratory procedures to separate and combine chemicalsThe physical and chemical properties of a substanceNow it is time to turn in your lab instruction sheet. Make sure you have filled in all the relevant information and answered all the post-lab questions. Submit your lab report to the Lab: Chemical and Physical Changes assignment link for grading. For more information on how this assignment will be graded, view the Lab Rubric.Exploratory Activity: ChromatographyMaterials:Forensic scientists use chromatography on ink pens to tell if a document was written with a specific pen. This can provide direct evidence in many types of cases. For example, if a ransom note was found, forensic scientists would analyze the ink using chromatography.If a suspect was found with a pen that showed the same chromatography pattern, the forensic scientists would have strong evidence to suggest that suspect wrote the ransom note. Let’s see how forensic scientists would test a pen. You will need only a few simple household materials.Two coffee filtersTwo different black markers (NOT permanent markers)SaucerWaterActivity WorksheetProcedure:Using one of the black markers, place a dot in the center of the filter paper.Place the filter paper on the saucer.Put a few small drops of water on the spot.Wait a few minutes…what did you see?Now, using the other black marker and the other coffee filter, repeat the procedure. What did you see this time?Many black inks are made up of several dyes. Explain any differences you saw between the two markers.Did the components of the inks separate differently?Are any of the component colors the same in both of your markers?Answer these questions in the exploratory activity worksheet and submit your worksheet to the Exploratory Activity:Chromatography assignment link for grading. For more information on how this assignment will be graded, please view the rubric.Lab IntroductionYou’ve just poured yourself the last bowlful of your favorite breakfast cereal – Up & Atom. While working your way through the first few spoonfuls, you discover, from the information on the box, that each bowl contains your complete daily allowance of iron. Is there some way you can prove the cereal manufacturers statement? You’ve already added milk to the cereal. How would you separate out this mixture to measure the iron content? This lab will walk you through some of the processes for separating mixtures.Lab ObjectivesAfter you have completed this laboratory, you will be able to:Use physical properties to separate the components of a mixture.Use laboratory techniques to separate the components of a mixture.Lab InstructionsTime Requirements: approximately 1.5 hourProcedures:Follow the lab instructions to perform the laboratory investigations. As you perform your experiment, record everything in this lab instruction sheet.Use the checklist to make sure all parts of the lab are complete.Read through the lab introduction.Complete the pre-lab questions.Read through the lab instructions completely before setting up the materials for your experiment.Conduct the experiment.Complete the calculations (if any) and answer the post-lab questions
The Behaviors Apparent for Each Disorder ODD and ADHD Ryan Case Study
would become very upset and throw temper tantrums when he could not do as he wished. He just seemed to be an unhappy, irri ...
The Behaviors Apparent for Each Disorder ODD and ADHD Ryan Case Study
would become very upset and throw temper tantrums when he could not do as he wished. He just seemed to be an unhappy, irritable child. This behavior continued in school. As time progressed, Ryan was diagnosed with Oppositional Defiant Disorder, because he continued to refuse to listen to adults and comply with the rules.By the age of 12, he has begun to bully and annoy others. His parents have decided that the approaches they have used in the past are not working, and they are more afraid his behavior will only get worse.Initial PostProvide explanations for these questions and statements:Describe the behaviors apparent for each disorder in this scenario (Attention Deficit Hyperactivity Disorder and Oppositional Defiant Disorder).If this behavior becomes worse and Ryan starts to violate the rights of others, what medical diagnosis will be given and why?Discuss at least two types of medication appropriate to treat Ryan and support your choices with rationale and credible resourcesDescribe why therapy for the parent is important in this scenario including at least two supporting rationales.Response PostsReview the posts of two classmates.In each post identify new knowledge gained.Describe how this new knowledge will impact your nursing practice including specific examples and credible resourcesPlease make your initial post by midweek, and respond to at least two other student's post by the end of the week. Please check the Course Calendar for specific due dates.
Relationship between two species and viruses by genetic reassortment
I. In California, Pacific Northern rattlesnakes prey on California ground squirrels. Their relationship is a great exampl ...
Relationship between two species and viruses by genetic reassortment
I. In California, Pacific Northern rattlesnakes prey on California ground squirrels. Their relationship is a great example of co-evolution. Read the article about their relationship found at https://news.osu.edu/how-is-rattlesnake-venom-like-fine-wine-both-have-regional-varieties/, and then address the following questions: Explain why the relationship between these two species is considered an example of co-evolution.What did you find most interesting or significant about how the rattlesnake population adapts to the squirrel’s defenses against its venom? II. Read the following recent article from MIT News about tracking the spread of bird flu that discusses the impact of reassortment: http://news.mit.edu/2017/tracking-spread-bird-flu-alaska-north-america-0317. Next, address the following: Discuss the factors that make Alaskan waters in the summertime an optimal place and time for new strains of influenza to arise by genetic reassortment.What do you think is the most interesting aspect of this situation?
Policy for reporting contagious diseases, science assignment help
You have done a great job preparing to be assigned by WHO to a remote site where you will set up your field lab. Is there ...
Policy for reporting contagious diseases, science assignment help
You have done a great job preparing to be assigned by WHO to a remote site where you will set up your field lab. Is there anything else you need to be prepared? As much as having the right equipment, supplies, and knowledge about microorganisms, it is also important to know who to notify and what communication channels exist for reporting disease outbreaks. Discuss the policy for reporting contagious diseases that break out in a country where you are located
2 pages
Lab Energy
Got to the PhET lab on Energy: https://phet.colorado.edu/sims/html/energy-skate-parkbasics/latest/energy-skate-park-basics ...
Lab Energy
Got to the PhET lab on Energy: https://phet.colorado.edu/sims/html/energy-skate-parkbasics/latest/energy-skate-park-basics_en.html 1. Place the skater ...
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