RumseyH_Final Exam

Dangerous Paint Stripper Jessica has a summer job working for the city parks program. She has been using a cleaner called “Graffiti Gone” to remove graffiti from the bathrooms. She has to take a lot of breaks, because the chemical makes her throat burn. It also makes her feel dizzy sometimes, especially when the bathrooms don’t have very many windows. On the label, she sees that the cleaner has methylene chloride in it. She feels like she’s managing to get the work done, but she is worried about feeling dizzy. She wants to find out more about this chemical, what harm it can cause, and whether there are safer ways to do this work. Questions for following story. 1. What went right in this situation? 2. What went wrong in this situation? 3. What steps should be taken in this workplace to make sure employees are better protected and prepared the next time?

Please answer questions 3a and 3b. Questions are provided in the attached image. Thank you.

7. You can see an MSDS below. Please answer the following questions related to the MSDS. a) What is the name of this chemical? b) What should you do if someone drinks the chemical? c) Would this chemical catch on fire if it was exposed to flames? d) If this chemical gets in your eye what should you do? e) What color is this chemical? f) What should you do if someone spills a small amount of the chemical?

Suspect #1: George Norman Suspect #2: Becky Baker George Norman recently Becky Baker is a world famous chef. She had just finished baking a cake at the time of the crime. The recipe called for baking soda. The formula for baking soda (sodium bicarbonate) is had an accident where he cut himself with a Alaia knife. He cleaned the wound with rubbing alcohol. The formula for rubbing alcohol Bak ing Seda NaHCOз. (isopropanol) is C3H80. Suspect # 3: Liz Lemon Suspect #4: Ben Linus Liz Lemon just had her nails Ben Linus had been walking done, and she still has traces of nail polish remover on her hands. Nail around in the rain for about an hour before the crime polish remover he was suspected contains acetone. Acetone of occurred. He The formula for Polish was dripping wet with water acetone is C3H60. renover at the time. The formula for water is H2o.

8 Welcome, Ayann IXL Search topics and skills Learning Diagnostic Analytics P Recommendations 1 Skill plans A Math O Language arts Science Social studies E Common Core Eighth grade> * E.5 Classify elementary substances and compounds using chemical formulas EHR Que ans Select all the compounds. 1 rhenium (Re) carbon monoxide (CO) TI elap glucose (C,H,206) PAU sodium hydroxide (NaOH) Challe Stage Submit Get 5 co in a n CI & $4 4. %23 8 t e h b C

Chemistry (2023) Q1B2

Answer the following if True or False. (11-20)   11. UHF radiowaves are ionizing form of radiation. *   True   False   12. Gray is the unit of the absorbed dose of radiation. *   True False   13. Spent fuel, uranium dioxide, from nuclear power plant can be disposed as ordinary solid waste. *   True   False   14. Sievert is a unit of the amount of energy that has been absorbed by the living tissue. *   True   False   15. The earth is constantly bombarded by background radiation like cosmic rays. *       True   False   16. Half-life of radioactive nuclides decreases by half every time they emit radiation. *   True False   17. Alpha particles are the most ionizing radiations. *       True   False   18. Irradiated…

MRI machines primarily work using ____.a. The nuclei of carbons in fatty acid chainsb. The nuclei of oxygen atoms from water molecules in the bodyc. The nuclei of hydrogen atoms from water molecules in the bodyd. The nuclei of radioactive isotopes injected into the body

16- During the (until 1910), the idea about the cause of earthquakes varies between mythology and natural phenomena. a) O maturated period b) O historical period C)) early period d) O modern period O Boş bırak KÔnceki 16/20 Sonraki> Kapat

How is personal risk analysis done when working with hazardous chemicals?Explain step by step

9c Please help asap

Can you help me step by step with number 8 part A, part B, part C? Can you explain it to me?

What is Donnan's theory? What is its importance in biophysical chemistry?

19 20 21

Explain the importance of analytical chemistry in medicine. As well as: 1. Chemical chemistry 2. Medicinal chemistry 3. Pharmacology 4. Toxicology

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.

9) C 10) A   Please explain why these are the correct answers

Can I get help from number 4, to number 10. Thank you!

Pls solve this as early as possible I upvote and pray for your wellbeing.

Please help me fill in the highlighted. I don't know. Please explain how to get the answers. Thank you in advance.

1. CzH5OH(I) + HCOOH(I) → HCOOCzHs + H2O(I) 2. C₂H5OH(1)→ C₂H4(g) + H₂O(1) 3. C₂H4(9) + Cl₂(g) → C₂H4C12(1) 4. C6H6(1) + Br2(1)→ C6H5Br(1) + HBr(g) 5. 2C4H10(9) + 130₂(g) → 8CO₂(g) + 10H₂O(1) 6. 2C7H8(1) + 150₂(g) → 14CO(g) + 8H₂O(1) Match each equation above with its reaction type. Reaction Type Addition Complete combustion Elimination Esterification Incomplete combustion Substitution Reaction Number from Above → ◆ ◆ Fill in the blanks to complete the following statement. One method used to differentiate between saturated and unsaturated compounds is to add a few drops of orange-coloured aqueous bromine to samples of each organic compound. If the compound is ◆ the orange colour will quickly fade.

Explain very well with proper explanation please Asap

Describe the type of reaction below as: addition; elimination; combustion; substitution   (i) C2H5OH → C2H4 + H2O …………………………………………..(ii) C3H8 + 5O2 → 3CO2 +4H2O …………………………………………..

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

organic chemistry 20 min! help!

Looking up one sunny afternoon from a general chemistry textbook, your friend Sam (an expert chemist) says this: "Did you know alkali metals and halogens combine to form halides?" Using Sam's statement, and what you already know about chemistry, predict the reactants of the following reaction. Be sure your chemical equation is balanced! 0- SrBr,(s) NC REACT Explanation Check 02021 McGraw Hill LLC All Rights Reserved Terms of Use Privacy Center

How is arson evidence collected and preserved?

15 8. Look carefully at the picture on the right-hand side. (a) Name four GOOD things which you can see in this picture. (b) Name one BAD thing which you can see in this picture.

Disscuss this NFPA Hazard Identification System and Hazardous Materials Identification System of a certain chemical.

PART 4-LABORATORY SAFETY QUESTION 1. In what situations should safety goggles be worn? 2. Why aren't glasses approved as protective eyewear? ANSWER 3. Where is the first aid kit located? 4. Where is the eyewash station located? 5. Where is the fire extinguisher located? 6. What does ABC represent on the fire extinguisher? 7. How is a fire extinguisher operated? 8. Which exit do you use when the fire alarm sounds? 9. Where is the broken glass container located? 10. Where is broken glass placed? 11. Why is there a separate container for glass and paper? 12. Why is no food or gum or drink allowed in the lab? 13. What should be done with long hair during a lab? 14. Why is it dangerous to sit on the lab benches? 15. Why must your lab work area be kept clear of clutter? 16. Why is there no carpet in a science laboratory? 17. Which way do the doors of a science lab open? Why? 18. If your teacher tells you to smell a substance during a lab, describe the correct procedure for smelling it. 19.…

B. Rates of reaction are typically measured as the change of concentration per unit time. Some typical units of concentration are: M, mM, pM, µM, nM. Some typical units of time are: years, days, hr, s, ms, ps, µs, and ns. For each reaction, suggest a reasonable unit of measure for the rate of reaction. a. The combustion of gasoline. b. The transformation of organic material into crude oil. Chemical change involved with memory in the human brain. с. d. The rusting of an iron nail. 9. Why would a scientist use nM/ps instead of M/s? - 112 -

3. What should be worn in a laboratory at all times to decrease the likelihood of eye injury? What should be done if a chemical gets in the eye?

Paragraph 5: Discuss Fractional Distillation of petroleum oil to give the chemical feedstock to make synthetic polymers for commercial use of products in our daily lives and discuss your personal thoughts on incresing US drilling in the Gulf of Mexico or in the Artic. Think about it, every time you go to the grocery store and get a plastic bag which immediately gets discarded. Include your thoughts on mandatory recycling in the US especially for schools, government buildings, etc.