engineering_lab_report

Experiment 4: Preparation and Properties of Hydrogen and Oxygen Gases Toriana Mieer -Jones Name: Section: Lab Instructor: L/26 Date: Pre-Lab Exercise 4 1. In this experiment, simple chemical reactions are used to generate small quantities of hydrogen and oxygen gases. These methods would be too expensive and too complicated if large quantities of these gases were needed, however. Use your textbook, a chemical encyclopedia, or an online source to look up the major industrial methods of preparing very large quantities of these gases. Summarize your findings here. ono od te led bateono to n

What Do you think the old stuff and the new stuff on the chemical reaction it makes a sparker light up

Create a model that explains a nuclear reaction within the context of its application :  Nuclear fission reactors  An equation for the nuclear reaction in your model  A visual representation of the nuclear reaction occurring  A written explanation of the reaction and how energy and matter are transformed and conserved throughout the reaction  The context and/or application of the nuclear reaction  Where does the reaction occur?  What impact or relevance does this reaction have to society?

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In 2021, Beta Corporation earned gross profits of $790,000. a. Suppose that Beta was financed by a combination of common stock and $1.03 million of debt. The interest rate on the debt was 9%, and the corporate tax rate in 2021 was 21%. How much profit was available for common stockholders after payment of interest and corporate taxes? b. Now suppose that instead of issuing debt, Beta was financed by a combination of common stock and $1.03 million of preferred stock. The dividend yield on the preferred was 7%, and the corporate tax rate was still 21%. Recalculate the profit available for common stockholders after payment of preferred dividends and corporate taxes. Note: Do not round intermediate calculations. Enter your answers in dollars not millions and round your answers to the nearest whole dollar amount.

Within the next hour. Also, please show work

4 Read the following sentence: "When the sun's rays hit a plant's leaves, the plant is able to transform that light-or solar energy-into chemical energy that is then used as fuel." Based on the evidence above, what conclusion can be made? A- This causes plants to produce light. B-- Plants can turn food into solar energy. C-- Photosynthesis only occurs at night. D- Plants need the sun to make food.

Dear tutor please reword whats writeen and add more details to the explanation

4. Choose the nonrenewable resourced that best match this description: low-carbon energy source. A. fossil fuel B. nuclear energy 5. Choose the nonrenewable resourced that best match this description: more disposal problems A. fossil fuel B. nuclear energy 6. Choose the nonrenewable resourced that best match this description: more storage problems A. fossil fuel B. nuclear energy 7. How many grams does 0.027 mol of 2 points copper weigh? A. 0.00042 g В. 1.7 g C. 16g D. 2 400 g 8. For the reaction of nitrogen gas with 2 points hydrogen gas to produce ammonia gas, how many moles of N2 are required t produce 30 mol of NH3? * N2 + 3H2 → 2NH3 A. 15 mol B. 30 mol C. 60 mol D. 120 mol

Dr. X claims that she has found a new remedy (carrot extract) to cure acne. She scores an interview with the science writer for a local newspaper, and gets a brief article written about her and her claims in that newspaper. The article does not contain any experimental evidence, but mentions that Dr. X accidentally splashed some carrot extract on her face and found that the acne was reduced a few days later. Student Y finds the article and cites it as a source for a paper he is writing for class, as evidence that acne has been cured. (a) Is this finding a fact, a theory, a hypothesis, or an observation? Explain why you think so. (b) Was it OK for Student Y to use the newspaper article as evidence for his paper? Explain why or why not.

Describe how nuclear energy cangenerate electricity: fission, fusion, andthe breeder reactor.

Explain Material Balances on Combustion Reactors?

A fuel mixture comprising 600.0g of N204 and 400.0g of CH,N2 is used in a test of laboratory-scale mock-up of the Draco thruster. When the engine stop burning, some unused fuel remains. What substance is this unburned fuel, and what mass of it should be found? Upload Choose a File

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working

You are working for SETI, the Search for Extraterrestrial Intelligence. One day, you receive a radio communication from an alien intelligence. Although you cannot understand their language, they have included some photos from an ILove Lucy episode. The photos allow you to determine that it is the episode in which Lucy makes a television commercial on Vitameatavegamin. This episode first aired on CBS on May 5, 1952. Before running to your supervisor to tell him the news, you quickly determine how far away in light-years the alien civilization is.

For this question you will need to work all of your answers on scratch paper. Once completed, upload an image of your answers showing all work and dearly identifying your answers. Use the Browse My Computer button to upload an image. The following data was collected for the formation of N205. By reaction of NO2 and 0₂ 4NO2 02 2N₂Os Time in Mantes 10.0 20.0 30.0 40.0 50.0 60.0 70.0 10.0 90.0 100.0 [0₂] units of Molarity 0.0078 0.0077 0.0075 0.0072 0.0065 0.0063 0.0057 0.0048 0.0056 0.0021 0.0010 a. Show all your work, what is the average rate of the reaction? b. Show all your work, what is the instantaneous rate from 10.0 to 40.0 minutes? c. Show all your work, what is the instantaneous rate from 30.0 to 60.0 minutes? d. Show all your work, what is the instantaneous rate from 50.0 to 90.0 minutes?

3) You're wandering around and come upon an interesting looking rock. The rock is slightly radioactive, so you analyze it. The resulting data is as follows: Elapsed Time (s) Counts 962 50 891 100 718 150 598 200 531 250 448 300 413 350 334 400 308 450 287 500 202 550 178 600 154 a. Calculate the value of k using any two of the above data points. b. Use your value of k to determine the half-life of this sample.

3.What is a disadvantage of nuclear energy generation? One answer only. A.Nuclear power plants are one of the leading causes of global warming. Global warming is primarily due to thermal pollution. B.Nuclear power plants are considered high-risk. Any accident may leak radioactive materials into the environment. C.Nuclear power plants cause air and water pollution during their regular operation. Nuclear power is a leading cause of air pollution. D.Nuclear power plants are far more expensive to run. Nuclear power is not as affordable as other types of power.

A nuclear power plant uses plutonium-239 to convert water to steam. The steam drives a turbine which turns a generator to produce electricity. Which is NOT a form of energy in this process? A) electrical energy B) chemical energy C) heat energy D) mechanical energy E) nuclear energy

The fundamental force underlying all chemical reactions is   A. nuclear B. centripetal C. electrical D. gravitational E. none of the above

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Compare nuclear energy to solar energy and fossil fuels in terms of safety and greenhouse gas emissions.

Only 100% sure experts solve it correct complete solutions each okk take 24hrs but solve all okkk must accurate students own words okk don't use Ai okk.

Please do a half life, conversion, and efficiency questions example please