CHEM 1161-S22-Final Exam Form A

M Apple Google Disney ESPN Yahoo! Biomedical Careers Program Apple iCloud Yahoo Images Bing Google Wikipedia COWLv2 |... b D2L ☆ & G For the reaction r r Submit Answer prod03-cnow-owl.cengagenow.com Fe(s) + 2HCI(aq)→→→FeCl₂(s) + H₂(g) AH° = -7.4 kJ and AS° = 107.9 J/K D2L D2L D2L Facebook Twitter LinkedIn Use the References to access important values if needed for this question. The Weather Channel Yelp TripAdvisor b D2L M G C The maximum amount of work that could be done when 2.08 moles of Fe(s) react at 286 K, 1 atm is Assume that AH° and ASº are independent of temperature. Retry Entire Group 4 more group attempts remaining kj. +88 M

Mind Tap - Cengage Learning X om/ilrn/takeAssignment/takeCovalent Activity.do?locator=assignment-take me teaching and le X [Review Topics] [References] Use the References to access important values if needed for this question. An 1.11 mol sample of nitrogen gas at a temperature of 10.0°C is found to occupy a volume of 27.5 liters. The pressure of this gas sample is atm. Submit Answer 888 F4 + A FS Retry Entire Group 8 more group attempts remaining Cengage Learning Cengage Technical Support MacBook Air VA DII DD Previous

ical reactions. It 18 not true, however that the fourth postulate is be nuclear reactions. Dalton believed that atoms were solid, indivisible spheres, an idea we now reje But he showed remarkable insight into the nature of matter and its interactions. Sone of his ideas could not be verified (or refuted) experimentally at the timne. They were based on the limited experimental observations of his day. Even with their shortcomings Dalton's ideas provided a framework that could be modified and expanded by late scientists. Thus, John Dalton is often considered to be the father of modern atomie theary. In Dalton's work, he thought that atoms are indestruetible. However, it was later found that atoms still contain smaller particles and that these subatomic particles further contain particles within them. Since then, sorne revisions have been made on Dalton's work although much of il renained intact. What's More BC Independent Activity 1. Sum it up Complete the lable. Write the answer on the…

Curved arrows are used to illustrate the flow of electrons. Follow the arrows to predict the intermediate and product of reaction. Include all lone pairs. Use wedges and dashes to indicate stereochemistry. Ignore inorganic byproducts. pyridine, CIT فروش Drawing

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?

H J K L Enter V B N M Shift Chapter 2 An Introduction to the Chemistry of Life 37 SELF-QUIZ: TESTING YOUR KNOWLEDGE 1. Each atom has a nucleus made up of р. 24. 2. In atoms, the number of protons is usually equal to the number of 3. The atomic number of an atom is equal to the number of 7. Proteins and carbohydrates consist primarily of carbon, hydrogen, and oxygen; these two molecules are types of and neutrons. -compounds. p. 31. 8. On the pH scale, a pH of is neutral; a solution with a pH less than this is this is 9. Chemicals like bicarbonate that resist pH change are called р. 25. and a solution with a pH greater than р. 32, in the nucleus. p. 26. 4 An alternative form of an atom is called an differs in the number of neutrons in the nucleus. p. 26. 5. A bond formed between two atoms that share electrons is called it p. 33. 10. When water molecules dissociate, they form and ions. p. 32. bond. p. 28. bonds form between oppositely charged atoms of a(n) polar covalent bonds of…

Nuclear __________ powers the sun and hydrogen bombs.     fission     fusion

Next E Contents Notes 3 A Grades 3 Riley Slusser Chemistry: Q4: 2022-23 | Bala 0³ 1 - 3.1H+1H → On+ On 2 O 4Be O ₂2H 2 He O 0 2 1H

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The radioactive isotope carbon-14 is used for radiocarbon dating. The half-life of carbon-14 is 5.730 x 10 years. A wooden artifact in a museum has a C count that is 0.125 times that found in living organisms. Estimate the age of the artifact. Age = years %3D Submit Answer Retry Entire Group 9 more group attempts remaining. Previous Next Save and Ex

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.

13. Soru Complete the given reaction. Fe(s) + H2SO4(aq) + ........ ........ A) Fe (aq) + SO2(g) B) FeSO4(s) + H2(g) C) FeH2(aq) + H2(g) D) FeH2(aq) + SO2(g)

6./Complete hudlear equations beicw. the missing partidro in thC A 23 227 231. १० १) 231

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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.

ery Ass Chemistry - S2- MI / Traveling Through Media / Lesson 180 11.1H +1H On+ O ABe O iH OHe 4. 2Не 3 On

22. The coefficients are missing from the skeleton equation below: AL(SO.). AIOH), KSO4 КОН The order of the missing coefficients is:

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.

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?

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?

i need help solving questions 32 - 36 thank youu

4) The intensity of gamma rays, X-rays, or any other radiation is A) inversely proportional to the cube of the distance from the source. B) inversely proportional to the distance from the source. C) inversely proportional to the square of the distance from the source. D) directly proportional to the square of the distance from the source. E) directly proportional to the distance from the source. dele (1