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Part A Which route would be better: one that produces a small amount of hazardous waste or one that produces a large amount of nonhazardous waste? Which green chemistry metric accounts for this dilemma? Match the items in the left column to the appropriate blanks in the sentences on the right. Reset Help minimize The best route is because it should the E-factor and maximize the effective mass yield. the one that produces a small The accounts for this dilemma as it looks at the amount of relative to amount of hazardous waste the amount of E-factor product made the one that produces a large amount nonhazardous waste materials used difficult to choose hazardous reagents used waste produced Submit Previous Answers Request Answer

A Water Quality Standard will be developed for radioactive isotope “Iron-55” which has physical (radioactive) and biological half-lives of 2.7 and 1.6 years, respectively. Through toxicological studies scientists decided “spleen” as the critical organ and the critical accumulation of Iron-55 in spleen has been determined to be 0.5 gram. Assuming radioactive exposure is only due to drinking water consumption and average life expectancy is 75 years. a) What should be the Maximum Concentration Level (MCL) as mg/L for Iron-55 in drinking water.  b) How long does it take to eliminate 95% of this radioactive isotope from human spleen after the person gives up on drinking water contaminated with Iron-55?

Hydrochloric acid can be prepared by the following reaction: 2NACI(s) + H2SO4(aq)2HCI(g) + Na2SO4(s) What mass of HCI can be prepared from 2.00 mol H SO4 and 150. g NaCl? Multiple Choice 2.57 g 167 g 93.6 g 11 asus COLLECTION prt sc delete 112/A insert f7 f8 f11

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.

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.

lonization radiation usually affects molecules in human cells like: glucose water DNA lipids

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?

You will research how the energy is extracted or produced and try to be very detailed about the process and the chemistry involved (stating equations and reactions). You will also research the impact on the environment when using or producing fuels. Investigating fossil fuel: How is it produced? What is the chemistry involved (stating equations and reactions)? What is the impact on the environment? 300-400 words Investigating nuclear energy: How is it produced? What is the chemistry involved (stating equations and reactions)? What is the impact on the environment? 300-400 words Investigating biofuel: How is it produced? What is the chemistry involved (stating equations and reactions)? What is the impact on the environment? 300-400 words

The COVID-19 pandemic forced many people to work from home for extended periods. During these periods, many cities reported unusually low levels of smog. Suggest an explanation for this observation.

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

Scientists study the impact of changing only one component of a cancer treatment in a laboratory. Which of the following describes the study? controlled experiment observational study conceptual model computational study

Which of the following questions would not be of scientific importance? Note: there is more than one correct answer here. a. Does fracking affect the frequency of severe earthquakes? b. What was the best album of 2022? C. What were the radiation levels of the Three Mile Island meltdown? d. Who is the fastest-The Flash, Quicksilver or Sonic the Hedgehog? e. Is there a possible vaccine for RSV?

2Na(s) +2H2O(l) → H2 (g) + 2Na+(aq) +2OH-(aq) Considering this equation, what evidence would you look for and what tests would you perform as evidence that the reaction taken place is the one predicted?

Answer question 7 please

Please don't provide handwritten solution ....

On determining temperature and COz concentration that occurred thousands of years ago: (12 pts) Someone shows you the plot below associating isotopes ratios to temperature records and you immediately say these samples are from polar ice cores. Why?   (10 pts) How would you expect the plot might change if instead the isotopes were obtained from ocean sediments? Draw that version of the plot and explain. (8 pts) Temperature records based on sediments often go back millions of years to the age of dinosaurs, while the ones based on ice-cores go back less than 1 million years. What's the main cause of this?

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.

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Which of the following would be used to sterilize a mattress?   ethylene oxide heavy metals autoclaving formaldehyde non-ionizing radiation

3) Carbon-14 is constantly being produced in the upper atmosphere, and the amount is in equilibrium. As long as an organism is alive, it keeps its carbon isotopes in balance with the atmosphere, but at soon as it dies, it stops taking up new 14C, and so the geologic clock starts. You found a shell buried in sedimentary layers, which has 6% of its original 14C left. Determine the age of the shell. Show your work.

Can you use the craap method to determine if the article by caltech titled Beirut explosion: TNT equivalence from the fireball evolution in the first 170 milliseconds is credible?explain why or why not?

1.Explain the slogan about chemical safety " A spill, A slip, A hospital trip" 2.How do you apply 5s(sort, set in order, shine, standardize, sustain) to attain chemical safety at home and in school?. Enumerate