Write three paragraph persuasive essay about the chemistry of getting clean with stance on the use of antibacterial agents, include main statement and two total references.
Questions
The pH of the solution will change by a large amount after the addition of a small amount of base. Order the steps for how you will determine the pK of a weak acid using a titration curve.
Questions
When observed independently, which of the following are indications that a chemical reaction has occurred? Select all that apply.
Classify each compound as water soluble or water insoluble.
: Water soluble
: Water soluble
: Water soluble
: Water insoluble
Select the net ionic equation for the reaction that occurs when sodium hydroxide and nickel(II) nitrate are mixed.
Select the net ionic equation for the reaction that occurs when potassium iodide and lead(II) nitrate are mixed.
Select the net ionic equation for the reaction that occurs when sodium carbonate and calcium chloride are mixed.
Select the net ionic equation for the reaction that occurs when potassium acetate and silver nitrate are mixed.
Select the net ionic equation for the reaction that occurs when sodium carbonate and nitric acid are mixed.
Select the net ionic equation for the reaction that occurs when sodium hydroxide and nitric acid are mixed.
Select the net ionic equation for the reaction that occurs when sodium acetate and sulfuric acid are mixed.
For each pair of reactants, will there be a reaction?
: Reaction
: Reaction
: Reaction
: No reaction
Select the net ionic equation for the reaction that occurs when magnesium metal and sulfuric acid are mixed.
Select the net ionic equation for the reaction that occurs when aluminum metal and hydrochloric acid are mixed.
Pb2+(aq) + 2 I−(aq) ⟶ PbI2(s)
Ca2+(aq) + CO32−(aq) ⟶ CaCO3(s)
No reaction occurs
2 H+(aq) + CO32−(aq) ⟶ H2O(l) + CO2(g)
H+(aq) + OH−(aq) ⟶ H2O(l)
No reaction occurs
Zn(s) + HCl(aq)
Zn(s) + CuSO4(aq)
Mn(s) + Ni(NO3)2(aq)
Sn(s) + Mg(NO3)2(aq)
Mg(s) + 2 H+(aq) ⟶ Mg2+(aq) + H2(g)
2 Al(s) + 6 H+(aq) ⟶ 2 Al3+(aq) + 3 H2(g)
Select an element or simple inorganic compound of your choice and address in detail at least one form that it is found in nature, one method of extraction and purification and present at least one industrial application.
Prepare a brief prospectus (12 font, double spaced, one page) and at least 3 relevant literature references in ACS format with you to the meeting and be prepared to discuss your choice.
Include only one purification but very detail.
Cite at least 3 original sources using ACS style formatting.
Initial Post:
For your initial post, research a common household chemical, cosmetic compound, drug, or another commonly known chemical. Title your post with the name of this compound.
If another student has already written about your compound, pick a different one. List its systematic name, as well as other names it is known by.
Describe the history of the development or discovery of this compound. Does that show up in the name?
How do the names of this compound influence your perception of its safety and efficacy? Cite all sources by providing links
The lab report must include; Introduction, Hypothesis (if available), Materials and Methods, Results, and Discussion. Add references and format APA style.
Lab Report – Applying Scientific Method – Pillbug Preference
What is your hypothesis for this experiment?
What is your strategy?
What is your experimental setup for the top choice chamber?
What is your control setup for the bottom choice chamber?
Experiment steps:
My Hypothesis:
Pillbugs will move toward the choice chamber containing cornstarch, because they are attracted to cornstarch
My Strategy:
I will add 5 pillbugs on the left and 5 pillbugs on the right and count the number of pillbugs on each side at regular intervals of time.
Experiment Setup:
I will put cornstarch on one side of the chamber and fine sand on the other side of the chamber.
Control Setup:
I will put sand on both sides.
My Conclusion:
The pillbugs tend to move toward the cornstarch, and the control group shows they don’t change behavior regarding sand.
Collected Lab Data
| Time (minutes) | # Bugs Upper-left | # Bugs
Upper-right |
# Bugs Lower-left | # Bugs
Lower-right |
| 0 | 5 | 5 | 5 | 5 |
| 2 | 6 | 4 | 6 | 4 |
| 4 | 7 | 3 | 5 | 5 |
| 6 | 8 | 2 | 5 | 5 |
| 8 | 8 | 2 | 4 | 6 |
| 10 | 10 | 0 | 4 | 6 |
| 12 | 10 | 0 | 4 | 6 |
Saved Graphs
Graph 1
https://newconnect.mheducation.com 1/2 8/25/22, 9:48 PM Laboratory Simulation
| Upper-left Upper-right (Cornstarch) (Sand) | Lower-left (Sand) | Lower-right (Sand) |
https://newconnect.mheducation.com2/2
Density of a Plastic cube
Materials:
Equments – Balance, Graduated cylinder, Glass Rods, Polypropylene cubes, Caliper
Chemicals – Water, 1,2 – Dichloroethane, Methanol
Procedure:
If the balance was not tared to display 0.00 g prior to adding the cube, which of the following statements are true? Select all that apply.
The mass of the cube can be calculated. The mass displayed on the balance before the cube was added will need to be subtracted from the mass displayed on the balance with the cube. The cube can be reweighed after the balance has been tared to display 0.00 g.
The polypropylene cubes have a density of 0.946 grams per milliliter. Identify the true statement(s). Select all that apply.
The cube sinks in methanol because methanol’s density is less than the cube’s density.
The cube floats on water because the water’s density is greater than the cube’s density.
Which liquid(s) could be used for displacement? Select all that apply.
Methanol
Review your observations of the behavior of the cube in each liquid. Which liquids can you use to make your suspension mixture?
Select all that apply.
Methanol and 1,2-dichloroethane
Methanol and water
Collected Lab Data
| Mass (g) | 0.92 |
| Cube length (cm) | 1.003 |
| Cube volume (cm3) | 1.009 |
| Cube density (g/cm3) | 0.91 |
| Methanol | sinks |
| 1,2-Dichloroethane | floats |
| Water | floats |
| Methanol volume (mL) | 5.01 |
| Methanol + cube volume (mL) | 6.01 |
| Cube volume (mL) | 1.00 |
| Cube density (g/mL) | 0.92 |
| Methanol
volume (mL) |
Water
volume (mL) |
Cube’s behavior | |
| Mixture 1 | 2.00 | 1.00 | sinks |
| Mixture 2 | 2.00 | 2.00 | sinks |
| Mixture 3 | 2.00 | 3.00 | sinks |
| Mixture 4 | 2.00 | 4.00 | sinks |
| Mixture 5 | 2.00 | 5.00 | sinks |
| Methanol volume (mL) | Water volume (mL) | Cube’s behavior | |
| Mixture 6 | 2.00 | 6.00 | suspended |
| Identify mixture with cube’s density | mixture 6 |
| Cube density (g/mL) | 0.947 |
NOTE – REPORT IS SUBMITTED AS ONE DOCUMENT WITH PHOTOS/GRAPHS AND QUESTIONS INSERTED
Purpose and Hypothesis
This section should be a concise summary of the lab (one paragraph with 3-5 sentences).
Most labs have pre‐lab questions associated with them. Please copy the questions into your report and answer them in complete sentences, explaining your answers. The example questions shown at the end of this document also apply to the pre‐lab questions.
This section should briefly summarize what you did. NOTE: This section is where you want to place your photos for your lab.
Example Table
| Step | Substance | Reagent | Result | Description |
This section needs to show calculations for any calculations that were needed in the lab.
This section should summarize in detail the main findings of the lab. Your conclusion should be one paragraph and on the order of 6-10 sentences. Summarize the main results and conclusions from the experiment and the main sources of error. You may also include what you learned in the experiment or any results that you found surprising. For example:
For this section it is helpful to think of the assumptions that were made in the lab and how your data would be affected if those assumptions were not completely true.
Depending on the lab, there might be both Pre and Post lab questions along with Activity questions, which will all be found in the Lab Questions document. All of these questions must be answered for full credit on the lab report.
Be sure to completely answer and explain all the questions and include complete calculations for any questions that require calculations. Please feel free to ask questions in our discussion forums as you work through them.
Examples:
Answer this fully and give your reasoning/explanation for your answer
Answer this fully and give your reasoning/explanation for your answer
You need to include, at minimum, one reference. Be sure to reference all information that you use to write you report, including any web resources or your text book. All sources should be cited using APA guidelines.
Students are required to include citations for a couple of reasons. First, include references for the lab manual because the class is following procedures and using materials from the lab vendor. If a person reads a lab, but isn’t already familiar with the procedure, they will have a difficult time understanding what was done. Including a reference at the end of the document provides a pathway for someone to look up the original procedures to help them understand the results. Another point in including references is to practice writing proper citations according to APA guidelines http://ccconline.libguides.com/APAtoolkit. See the report rubric for more information.
Instructions
Here is a brief blog on metabolism of cancer cells.
Watch the videos below and answer the following questions:
● Targeting Cancer Cell Metabolism
● Warburg Effect: Hallmark of Cancer
● How does a PET scan work?
In a Word document, first create a separate Title Page that contains the name of the project, along with your name and the date. Then, answer the questions below:
1. Summarize the difference between cancer cells and normal cells, in terms of metabolic activity, in your own words. Be sure to address the presence or absence of oxygen, pyruvate, and lactate. (Your answer should be about 25-50 words)
2. PET scans are used as a diagnostic for cancer cells. Describe how PET scans work in your own words. (Your answer should be about 25-50 words)
3. Why is fluorodeoxy glucose used in PET scans? And how does it indicate the presence of cancer cells?
4. In the above articles and videos, there is a discussion of the role of pyruvate and lactate. Draw the two structures and circle on your drawings exactly where the two structures differ. Submit a photo of your drawing with your student ID card visible with your Project. Make sure your image is clear. If the image can not be read, it can not be evaluated.
5. Draw the reaction that can occur to convert one to the other (pyruvate and lactate). Show how NADH is involved in the reaction and give the name of any enzyme. Submit a photo of your drawing with your student ID card visible with your Project. Make sure your image is clear. If the image can not be read, it can not be evaluated.
NOTE: All drawings should be signed and dated.
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