Category: Chemistry

In this presentation, I have to talk about Iodine-131.
Identify the type of decay (alpha, beta, gamma). 
Show the full balanced nuclear reaction,
Explain what is happening in the nucleus for each decay type.

I am Ahmed Madhat, a student at Al-Azhar University’s Faculty of Engineering, fourth year. I will help you solve your problems with questions.

in this assignment you will read these two articles to answer these questions no other resources required.
https://pubmed.ncbi.nlm.nih.gov/36152810/
https://iprjb.org/journals/index.php/IJF/article/view/1024/1475

Answer the following questions using the powerpoint provided. Answers do not need to be in paragraph/essay format.

Edit the lab report file attached. I will attach the lab report results.
In this lab you will:
Balance chemical reactions.
Recognize that the number of each type of atom in a chemical reaction is conserved.
Distinguish between coefficients and subscripts in chemical equations.
Describe limiting reactants and excess reactants.
Create and correctly format tables.
Create and correctly format graphs.

Attached is an example layout and instructions of the report. Here is the typed instructions from the professor. Measurements and instructions aswell as tools used in the experiments are also included in screen shots.
The first section of the report is the purpose or introduction. Pretend the reader is ignorant about
what we’re going to do in the experiment. The layout of the introduction is similar to the entire
report’s layout. We should start in more generalized terms and become more specific as we work
towards the end of the introduction. I suggest beginning with a qualitative and quantitative
definition of density. Then state why density is an important concept. Near the end of the
introduction, state the substances we will find the density.
The procedure is straightforward. We should include enough detail so that the reader can repeat
the experiments and obtain similar results. Do not copy the HOL text verbatim. Also, do not
quote the procedure. We should paraphrase. In nonfiction writing, do not use quotes unless we
are quoting an expert in the field and are attributing the English wording to the expert. It is best
to paraphrase.
Next, we need to include data in tabular form. We should notice that I provided the units in the
row or column headings in the template. Therefore, it is not necessary to give the units after each
entry.
The last section is the discussion of the results. State the calculated density for each substance.
Then, state if it is reasonable. For the liquids, also state the percent error. Now we must discuss
two possible sources of error and how they affected the calculated densities. I suggest comparing
the magnet by the direct method and the displacement method. More than likely, you obtained
two different densities. Which density is more plausible? Where do you think you made the
error? The other error you should discuss is for the liquids. Because you have no reference value
for comparison, I would not discuss the metal bolt. At the end of the discussion section, we need
a few sentences to summarize. Because the report is brief, we are not trying to summarize the
full report. Rather, we are letting the reader know he or she has come to the end of the report.
Often, students will end the report by discussing errors. Without a summary, the reader may
think that part of the report was accidentally omitted
Redrence: Labs, H. O. GOB-Laboratory Techniques and Measurements.

Apply the scientific method to propose a hypothesis and set up an experiment including positive and negative controls and appropriate units of measurement.
CO 2: Predict the numbers of protons, neutrons, and electrons given the atomic symbol or limited information for a specific isotope of an element and relate them to atomic mass and charge.
CO 3: Determine chemical names and/or chemical formula for diatomic or simple polyatomic compounds and draw a Lewis structure, construct a molecular geometry and determine the polarity for a covalent.
CO 4: Balance chemical equations, calculate the molar mass of all compounds in the reaction and demonstrate how mole ratios play a role in stoichiometry.
CO 5: Predict how a change in one or more of the parameters of a gas alters dependent gas parameters such as pressure, volume or temperature.
CO 6: Calculate the concentration and volume of a solution given solute and solvent parameters.
CO 7: Predict the properties of and identify reduction and oxidation agents as well as acids and bases by analysis of chemical formulas, chemical reactions, and solution pH values.
CO 8: Differentiate the common classes of organic functional groups and identify the appropriate common or IUPAC names, applications, and chemical structures for simple organic.
CO 9: Differentiate between the types of radio-active decay at the subatomic level and provide real-world applications, sources, and risks.
CO 10: Contrast the synthesis, composition, structure and functions of major biological macromolecules and Illustrate the process of flow of genetic information.
Points to speak on:
*Metabolic alkalosis: excess of bicarbonate due to renal insufficiencies and different syndromes that cause this. What is bicarbonate? Why is it important within the body?
*Respiratory alkalosis: incorrect mechanical ventilation and the decreased production of CO2
*How is alkalosis diagnosed?
*How is alkalosis treated?
*What are the dangers of untreated alkalosis, both metabolic and respiratory?
Here are the sites that help explain and help you understand the subject.
https://www.ncbi.nlm.nih.gov/books/NBK545269/
https://www.osmosis.org/learn/Respiratory_alkalosis
https://www.msdmanuals.com/en-gb/professional/multimedia/video/overview-of-respiratory-alkalosis

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
The order was placed through a short procedure (customer skipped some order details).
Please clarify some paper details before starting to work on the order.
Type of paper and subject
Number of sources and formatting style
Type of service (writing, rewriting, etc)

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?

Ideally, you will choose problems that you had a hard time solving until something clicked (which you would then explain–what you figured out that you did wrong, etc.). Either way, you should lead a discussion about the problem. This will help everyone go through the thought process of these problems, see different ways that students set them up, compare approaches, maybe learn new strategies and hints, recognize mistakes, etc. If you cannot solve the problem at first, no worries, your classmates and myself will give you help you along and you can edit your problem until it is due. If you are having trouble, show your work and explain where you are getting stuck. Remember, you are not getting graded on whether you solve the problems correctly, but rather the attempt you make and the discussion you have with us related to it. So it will likely be more beneficial to you to select challenging problems with which you need help as opposed to easy ones that you can already solve.
You need to:
show your work with the solution (use an embedded image or the Σ Graphical Equation button on the Text Editor)
explain in text form how you approached and worked through the problem
Question 1 63. How many milliliters of a soft drink are contained in a 12.0-oz can?
Qestion 2 Write the symbol for each of the following ions:
(a) the ion with a 3+ charge, 28 electrons, and a mass number of 71
(b) the ion with 36 electrons, 35 protons, and 45 neutrons
(c) the ion with 86 electrons, 142 neutrons, and a 4+ charge
(d) the ion with a 2+ charge, atomic number 38, and mass number 87