State and explain the appropriate gas laws involved in the spread of covid-19 outbreak in aircraft cabins and explain how the suitable gas involved can cause Covid-19 virus to spread rapidly in aircraft cabins.
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- A large population of Japanese beetles infests a plot of cropland. In response to the infesta tion, farmers treat the land with organochlorine pesticides. As a result of the treatment, the population of Japanese beetles is eradicated within the cropland, along with the popula- tions of multiple other insect species. Which of the following statements explains the most likely reason for the death of so many insect populations? Organochlorine pesticides are persistent organic pollutants that interfere with the respi- ratory system of the insect populations. Organochlorine pesticides are endocrine disruptors that interfere with the growth hor- mones of the insect populations. Organochlorine pesticides are persistent organic pollutants and interfere with the re- productive organs of the insect populations. Organochlorine pesticides are endocrine disruptors that interfere with the transmission of nerve impulses, resulting in spasms, seizures, and death of the insect populations.(a) What is the difference between chlorofluorocarbonsand hydrofluorocarbons? (b) Why are hydrofluorocarbonspotentially less harmful to the ozone layer than CFCs?The process whereby chemical treatment is used to temporarily prevent decomposition is most completely defined as: Disinfection Restoration Public health measures Preservation
- 2.) It’s a bad day in the lab! Two students are doing experiments. Each is 20 feet away from the professor. At the same time, each of them lets the same amount of a smelly gas into the room. One of them releases ammonia, NH3, and the other releases SO2. NH3 has a pungent odor, and SO2 smells like rotten eggs. The professor has no idea that this has happened, until she smell the first gas. Which chemical will the professor smell first? (NH3 or SO2) . If the professor starts to smell the first gas 42. seconds after the gas is released, how long will it take her to smell the second gas? sec. * Note: It is unsafe practice to work with these chemicals in an open lab.ecollege.com/course.html?courseld=16985674&OpenVellumHMAC=d4abff74a80d41d197d6c57220120253#10001 EUsing Microwave Radiation to Heat Coffee 9 of 29 M Review | Constants | Periodịc Table Microwave ovens use microwaye radiation to heat food. The microwaves are absorbed by the water molecules in the food, which is transferred to other components of the food. As the water becomes hotter, so does the food. Part A Suppose that the microwave radiation has a wavelength of 12.4 cm. How many photons are required to heat 295 mL of coffee from 25.0 °C to 62.0 °C? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 J/(g - K), as water over this temperature range. Express the number of photons numerically. > View Available Hint(s) ? photons Submit Provide Feedback Next> P Pearson 11:26 AM 72°F Sunny 11/25/2021 20 Copi)16O and 18O are two different isotopes of oxygen. What is ONE IS TRUE about 18O? it less easily evaporated than 16O it is more volatile and reactive than 16O it is lighter than 16O it is more commonly occurring than 16O II) Ice core samples taken from Antarctica have been used to estimate changes in surface temperatures and the atmospheric concentrations of carbon dioxide and methane. This data indicates that when the temperature is relatively warm, the amounts of carbon dioxide and methane are ___________ Select one: relatively low (negative correlation) sometimes high, sometimes low (no correlation) relatively high (positive correlation) III) The answer to the previous above question indicates that ___________ . Select one: high atmospheric concentrations of carbon dioxide and methane might lead to warmer temperatures high atmospheric concentrations of carbon dioxide and methane might lead to cooler temperatures there is no…
- Some pollutants are difficult to break down and therefore accumulate in the environment. These are termed chronic pollutants. non-persistent pollutants. persistent pollutants. chemical indicators.a) Suggest 2 mitigation methods for improving the indoor air quality of the hospital. b) Based on the problems associated with air pollution in the case , suggest TWO (2) mitigation methods for improving the outdoor air quality of the hospital.On the occasion of World Health Day, Dr. Satpal organized a ‘health camp’ for the poor farmers living in a nearby village. After check-up, he was shocked to see that most of the farmers suffered from cancer due to regular exposure to pesticides and many were diabetic. They distributed free medicines to them. Dr. Satpal immediately reported the matter to the National Human Rights Commission (NHRC). On the suggestions of NHRC, the government decided to provide medical care, financial assistance, setting up of superspeciality hospitals for treatment and prevention of the deadly disease in the affected villages all over India. (i) Write the values shown by (a) Dr. Satpal (b) NHRC. (ii) What type of analgesics are chiefly used for the relief of pain of terminal cancer? (iii) Give an example of artificial sweetener that could have been recommended to diabetic patients.
- Dexamethasone is a corticosteroid used in a wide range of conditions for its anti-inflammatory and immunosuppressant effects. It was tested in hospitalized COVID-19 patients in the United Kingdom's national clinical trial recovery and according to preliminary findings shared with WHO, for patients on ventilators, the treatment was shown to reduce mortality by about one third, and for patients requiring only oxygen, mortality was cut by about one fifth. Given the structure of dexamethasone, how many chiral centers are present in its structure? Он ... но H (A) 9 (B) none of these с) 6 E) 7 ||IGive a brief awnser to: What is the reasoning behind natural global warming? What is the reasoning behind man-made global warming?Dexamethasone is a corticosteroid used in a wide range of conditions for its anti-inflammatory and immunosuppressant effects. It was tested in hospitalized COVID-19 patients in the United Kingdom’s national clinical trial recovery and according to preliminary findings shared with WHO, for patients on ventilators, the treatment was shown to reduce mortality by about one third, and for patients requiring only oxygen, mortality was cut by about one fifth. Given the structure of dexamethasone, how many chiral centers are present in its structure?