annotated-P2%20Post-Lab%20Activity-2.docx

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+ terface/acellus_engine.htm?ClassID=1467683063 Use the data below to determine the mass ratio of iron to oxygen for compound 2. Compound 1 2 Et onal Academy of Science. All Rights Reserved. Mass Fe (grams) 15.55 20.98 [20:1 Enter the answer that belongs in the green box. Iron Ratio Cmpd 2 Mass O (grams) 4.45 9.02 Sh Enter

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hrome File Edit View History Bookmarks Profiles Tab Window Help Watch Gilmore Girls | Netflix ALEKS A ALEKS - Reyna Garc A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-IVDWKW BBZZ16tTytly4Fcf Spotify Web Playe... M Common Ethical D.. O CHEMICAL REACTIONS Identifying the limiting reactant in a drawing of a mixture The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen sulfur oxygen chlorine Suppose the following chemical reaction can take place in this mixture: CO(g)+2 H,(9) → CH,OH(9) Of which reactant are there the most initial moles? Enter its chemical formula: Of which reactant are there the least initial moles? Enter its chemical formula: Which reactant is the limiting reactant? Enter its chemical formula: Explanation Check FEB 13

For this question: How SPF blocks UV rays from the Sun Please answers it Try to answer it in a presentation way please Please please please answer as fast as possible please

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O : Q 8 File Edit View History Bookmarks Profiles Tab Window Help O Psychology Research Sign-Up x WPAL 101 233 Spring 202 ALEKS A ALEKS - Reyna Garcia Watch Gilmore Girls | Netflix A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-lvdWKW_BBZZ16tTytly4Fcfu6zOtOf8oMM9smRgOXk4zql8rHN-B4Sv7Er8YkAkkZH6IMU... O * G Spotify Web Playe. M Common Ethical D. O CHEMICAL REACTIONS 0/5 Solving moles-to-moles limiting reactant problems Nitrogen dioxide (NO2) gas and liquid water (H,O) react to form aqueous nitric acid (HNO,) and nitrogen monoxide (NO)gas. Suppose you have 2.0 mol of NO, and 5.0 mol of H,O in a reactor. Calculate the largest amount of HNO, that could be produced. Round your answer to the nearest 0.1 mol. | mol Explanation Check OU Rinhts Reserved. Terms of Use I Privacy Center Accessib

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Subject environmental engineering solve question 11

Please answer questions 3 and 4 and show work please. Thank you

For this question: How SPF blocks UV rays from the Sun Try to answer it in a presentation way please Please also look at the image attached Please please please try to answer everything it's super super important and urgent Please please answer as soon as possible I’m begging please

How would you do part C, please show all your work on a piece of paper and explain why is like that.

Exit Fullscreen For this assignment, you are required to conduct research on one of the following energy sources within Canada: • Fossil fuels • Nuclear energy • Biofuels • Wind energy • Solar energy You will research how the energy is extracted or produced, and provide details about the chemical process (stating equations and reactions). Your work must also include a comment on the impact your chosen energy source has on the environment and society. This assignment is worth 15% of your course grade. Instructions Assignment components Ensure your assignment includes the following pieces of information relevant to your chosen energy source: • The name of your chosen energy source and a brief description of what types of compounds are used in the production process • Details about the chemical process, stating balanced equations and reactions • A calculation of bond dissociation energy for the reaction, accompanied by an explanation of what the value indicates • An analysis of the impact…

You work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.

3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the liquid vinegar is acetic acid and 95% of the solution is water. In a hardware store, you can buy industria strength vinegar, which is 30% concentration. This means that 30% of the vinegar is acetic acid, and the remaining 70% is water. Samuel does another experiment, this time with 5% vinegar and 30% vinegar. He sets up two science fair volcanoes (in no particular order), each with the same temperature, mass of baking soda and volume o vinegar. But one volcano uses 5% vinegar and the other volcano uses 30% vinegar. He measures the volume of gas production for the'first minute of each reaction, and he records the data below. Volcano # 1 Volume of gas produced (mL.) vs. Time (s) for Volcano #1 Time Volume of gas (s) produced (ml) 60 E 50 10 20 30 25 8 40 38 46 30 20 Volume of gas produced (ml) 40 50 50 60 52 of 10 53 20 40 60 80 Time (s) Volcano # 2 Volume of gas Volume of gas produced…

1) Listen The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10-5 and a professor made 1825 mL of a CaSO4(ag) solution but then one of his graduate student accidentally poured in a 0.125 M solution of calcium phosphate [Ca3(PO4)2] solution. You may ignore the additional volume coming from the Cag(PO4)2 solution to make the calculation simpler. Now that you have calculated the new equilibrium constant (K) with this common ion effect then which way will the chemical equilibrium shift? need more information to be determined at equilibrium chemical equilibrium will shift to the right first and then to the left chemical equilibrium will shift to the right chemical equilibrium will shift to the left 201591..docx LAB EXP. #3 -..docx Show All

The destruction and removal efficiency for a particular VOC in an incinerator is 97.5%. Determine the mass flow rate (mg/s) of the VOC at the inlet if the volumetric flow rate is 15 m3/s and the outlet concentration is 100 µg/m³. O A. 40 О В. 50 О С. 60 O D. 70

ome File Edit View History Bookmarks Profiles Tab Window Help Watch Gilmore Girls x * Dementia Friend C X Yahoo A ALEKS A ALEKS - David Teac x Psychology Resea Lobby Top Hat A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNsIkr7j8P3jH-IvdWKW_BBZZI6tTytly4Fcfu6zOtOf8oMM9sjOAHGPMmOKRAJLU3LxjedwmoV-. O ☆ O Spotify Web Playe. M Common Ethical D.. O CHEMICAL REACTIONS 0/3 D Calculating molarity using solute moles A chemist prepares a solution of aluminum chloride (AIC1,) by measuring out 46. µmol of aluminum chloride into a 200. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's aluminum chloride solution. Be sure your answer has the correct number of significant digits. mmol L Explanation Check 202? McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy II

i)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…

Posttest Direction. Read the questions carefully. Write the letter of the correct answer. 1. Water exists in three states of matter and continuously moving through a cycle on Earth. At which stage in the water cycle does water transform from a gas to a liquid? a.evaporation c. precipitation b. condensation d. Sublimation 2. Carbon dioxide (CO2) forms when coal burns in the presence of oxygen. Which of the following is the BEST evidence that a chemical reaction occurs when the coal burns? a. Production of mechanical energy c. A new substance is produced b. Production of electricity d. Formation of precipitate 3.Which of these does NOT happen during a chemical change? a. New substances are formed with different chemical properties. b. Attractive force between atoms of molecule formed or break. c. The chemical properties of the substances before and after the reaction are the same d. Energy is always released or absorbed. 4. A granular substance is added to a liquid. Which of the…

To ensure that you are not confused, I attached what the experiment was about. I highly recommend you read through it before going to the questions. file:///Users/michaelzheng/Downloads/ExploringEnergy%20(2).pdf Only answer Post lab questions 2-5 For number five, put the answers in the format stated in the background. Thank you.

For this question: How SPF blocks UV Rays from the sun Please try to answer it in a presentation way (provide slides & pictures) & please write in detail each slide and explain them Provides notes to write on index cards please DON'T FOGET: first slide should outline (summarize) the whole presentation and the last slide should have the bibliography please please try to answer everything as fast as possible please its super super important and urgent i really need it Please please please answer I really need you to answer this please I'm begging Just try your best to answer please

Part A incorrect you filled in 4 of 5 blanks incorrectly

View History Bookmarks People Tab Window Help S, Amaya K - Outlo x B Chapter 5- CHEM-1110-941- x Question 20 - Chapter 5- Con x education.com/ext/map/index.html?_con%3con&external_browser%3D0&launchUrl=https%253A%252F%252Flms Saved 3 attempts left Check my work Enter your answer in the provided box. It takes 155 s for an unknown gas to effuse through a porous wall and 97 s for the same volume of N2 gas to effuse at the same temperature and pressure. What is the molar mass of the unknown gas? g/mol ... 115 MAR 1664 18 ottv A