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OWLV2 | Online teaching and X OmySigTau x b Login | bartleby M COMM.1113: FUND OF ORAL X G what food has c - Google Se X + now.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=assignment-take [References] A certain microwave oven delivers 750 watts (J/s) of power to a coffee cup containing 41.0 g of water at 35.3°C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, and how many photons must be absorbed, to make the water boil? The specific heat capacity of water is 4.18 J/°C-g and assume only the water absorbs the energy of the microwaves. photons Submit Answer Try Another Version 3 item attempts remaining Previous Next

9:37 ® d y LABORATORY-ACTIVITY-4 - Saved 目 LABORATORY ACTIVITY 4 PHYSICAL PROPERTIES OF MATTER I. OVERVIEW A physical property is a characteristic that can be observed and measured without changing the identity and composition of the substance. Examples of physical properties are color, melting point, and boiling point. Physical properties are very important because these help chemists in identifying substances. For example, a clear, colorless liquid observed to boil at 100 and freeze at OE would definitely be water. Water undergoes physical change wherein its physical appearance changes but its composition remains unchanged. I. ОВIЕСTIVES 1. To be able to determine the physical properties of matter. III. MATERIALS 1 long liwanag candle (remove the tip and cut into 2-inch, 3-inch, and 4-inch long) 3 iron nails (1-inch, 2-inch, and 4-inch long) Water Clear straight glass (calibrate: 1mm = 1 mL) Weighing scale IV. PROCEDURE 1. Describe the hardness and color of the candle and iron nails.…

Revi MISSED THIS? Read Section 4.2 (Pages 141 - 145) ; Watch KCV 4.2, IWE 4.2. Part A Nitric acid is a component of acid rain that forms when gaseous nitrogen dioxide pollutant reacts with gaseous oxygen and liquid water to form aqueous nitric acid. Enter a balanced chemical equation for this reaction. Express your answer as a chemical equation. Identify all of the phases in your answer. ΑΣφ OA chemical reaction does not occur for this question. Submit Request Answer Provide Feedback 62 a

Which of the following best define systems thinking in chemistry? Systems thinking is learning about chemistry within real-word contexts. Systems thinking focuses on the interdependence between chemistry components, as well as the influence of chemistry on other systems. Systems thinking is a way of thinking about chemistry systematically.

Help 100% Public Health Ch X HSC 258 - Major Projec X Mind Tap - Cengage Lea X C The Illustra d%3D55750828934189288909969212&elSBN=9781305657571&id%3D1061392007&nbld%3D21... References Use the References to access important values if needed for this question. For the following reaction, 66.8 grams of silver nitrate are allowed to react with 24.6 grams of copper(II) chloride. silver nitrate(aq) + copper(II) chloride(s) silver chloride(s) + copper(II) nitrate(aq) grams What is the maximum amount of silver chloride that can be formed? What is the FORMULA for the limiting reagent? grams What amount of the excess reagent remains after the reaction is complete? Submit Answer

Please answer the following question:

Before slow cooking a meat (for example, in a crockpot/slow-cooker) you will often find instructions to sear the meat on high heat in an oiled skillet for a few minutes before transferring it to the crockpot. The searing is brief – not long enough to cook the meat thoroughly. Despite myth/legend, the searing will not “seal in the juices”. What is the searing for?

7. Don believes that fewer than one-third of the students at his college hold part-time jobs while in school. To investigate this, he randomly surveyed 116 students and found that 32 students held part-time jobs. a. ( - Provide a 90% confidence interval for the population proportion of students that hold a part-time job. b. 1 (a). ;Give the correct interpretation of the interval in part c. Extra Credit: Does this interval support Don's claim? Why?

Would you help me whit this example (6) Thank you.

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?

OWLV2 | Online teaching and X 0mySigTau xb Login | bartleby X M COMM.1113: FUND OF ORA X G what food has c - Google Se X + om/ilrm/takeAssignment/takeCovalentActivity.do?locator=assignment-take D [References] hotogray lenses incorporate small amounts of silver chloride in the glass of the lens. When light hits the AgCl particles, the following reaction occurs: hv AgCl Ag + Cl The silver metal that is formed causes the lenses to darken. The enthalpy change for this reaction is 2.90 × 10² kJ/mol. Assuming all this energy must be supplied by light, what is the maximum vavelength of light that can cause this reaction? Wavelength %3D nm Submit Answer Try Another Version 3 item attempts remaining Previous Next

11. A material safety data sheet (MSDS) for a chemical is shown below. MSDS H3PO4(aq) Section 9: Physical and Chemical Properties Physical state and appearance: Viscous liquid Odor: Odorless Color: Clear, colorless Boiling point: 158°C Melting point: 21°C Specific gravity: 1.685 at 25°C Which of these is the appropriate name for H3PO4 (aq)? A. Trihydrogen phosphite B. Phosphoric acid C. Phosphorous hydroxide D. Phosphorous acid

File Edit View History Bookmarks Profiles Tab Window Help 7 YouTube Maps = tab liquid x N. Ask Yox N. Ask Yo x A ALEKS X www-awu.aleks.com/alekscgi/x/1sl.exe/1o_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHintXeoleXL2H OSTATES OF MATTER Using heat of fusion or vaporization to find the heat needed to... esc Explanation 39 cto X 1 Q A 2 Gheat ox v Calculate the amount of heat needed to melt 88.1 g of solid methanol (CH3OH) and bring it to a temperature of -23.6 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. 0 Z Check W S 3 X g X E D $ 4 C S > R F % 5 I tv T V 6 G B Thank Y 7 H U G 111 ck X N The 8 © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility 274@ A Aa O J Sketch X New 1 x + GCwaDdYUtqAJT1yasCs1fG_rUoyaRSVpsjfsOdH... ☆ 0 1 M 9 ( K O < 431% D ge Gwet dr x 0 L Wed 9:43 PM 0/5 P command Lara V ? 1 dlo A

السلم Br HO 1. NaBH4 (0.25 eq.), H₂O 2. 1. 1. MgBr (1 eq.), CH3CH₂OCH₂CH3 MgBr (xs), Et₂O 2. DCI, D₂O Br . Mgº (1 eq.) 2. CH₂CH₂OCH₂CH3 MgBr (excess) CH3CH₂OCH₂CH3

Much of Earth's history can be unraveled studying sulfur. Sulfur can be used as "geothermometer". The ratios of stable sulfur isotopes change with the temperature of Earth's processes. For example, igneous systems deep inside the Earth occur at very high temperatures, hydrothermal systems occur at intermediate conditions, and sedimentary rock weathering occurs at low temperatures. The composition of stable sulfur isotopes varies across the 1000 degree temperature range. 10. How many peaks would be seen in the mass spectra for such a study? Make a basic sketch (bar chart) a.m.u. vs % natural abundance and label each peak's a.m.u. and % natural abundance.

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

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4) __ H2 + O2 0 H20 HCI O Pb(OH)2 + AIBR3 + Al2(SO4)3 5) H20 + PbCl2 6). K2SO4 O KBr + 7) CH4 + O2 0 CO2 + H2O 8) _ C3H8 + 02 O2 0 СО2 + H20 9). C3H18 + O2 CO2 + H20 10). FeCl3 + NaOH Fe(OH)3 + Nac

aur X Macmilla X 2/ Course X 50 ~ T Sections X Submit Answer evo/index.html?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707786042&snapshot! References lancing Molecular Equations: This is group attempt 2 of 10 HOMEW X Use the References to access Important values if needed for this question. When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coefficients are: Na (s) + H₂0 (1). NaOH (aq) + H₂ (8) ≡く □ □ A MindTap ㅁ Autosaved at 5:51 PM MacBook Air Gatoms to When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coeffi Br₂(g) + Cl₂(g) →BrCl(g) X Dom

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.

#2 The answer is already there, I just need to learn how to do it.

23 Temperature (°C) Temperature (°C) Temperature (°C) Temperature (°C) Temperature (°C) Temperature (°C) C. 5. Three experiments were run using 10 mL of this mixture. Write the letter of the graph that besr matches each of the following experiments: Fractional distillation: Simple distillation: Theoretical (or "Perfect") distillation: A. В. 7 Vdistillate (mL) V distillate (mL) Vdistillate (mL) E. F. 7 Vaistillate (mL) Vdistillate (mL) Vdistillate (mL) 6. On graph A, what would be an appropriate temperature for: Point X? °C Point Y? _°C

5:35 PM Fri Oct 8 令51% AA www-awn.aleks.com G periodic table -... Favorites - YouT... TV fuboTV- Watch... ALEKS - Caliyah... G kno3 acid or ba... G linear program... G write formulas f... Solved A. Chem... O CHEMICAL REACTIONS Using molarity to find solute mass and solution volume Caliyah v A chemist adds 75.0 mL of a 0.0557 mM potassium permanganate (KMNO,) solution to a reaction flask. Calculate the mass in milligrams of potassium permanganate the chemist has added to the flask. Be sure your answer has the correct number of significant digits. mg x10 olo Ar Explanatio ck 20ZT MICoraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility nme

s.com/course.html?courseld%3D15828855&HeplD353706194671Of71a192e43597b01c6e0#10301 Principles of Chemistry I (Chem 1107-327) signments <09 - Pre-Lab 9.11 Pre-Lab Methane burns in oxygen to produce CO2 and H2O. CH:(9) + 202(g)→2H»O(1) +CO2(g) Part A If 0.55 L of gaseous CH, is bumed at STP, what volume of O, is required for complete combustion? Hνα ΑΣφ Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining 40 DELL

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