Potassium (K) reacts with oxygen gas (O,) to form potassium oxide (K,O). Which equation for this reaction is correctly balanced? K+ O2 K,O 2K + O2 K20 4K + O2 2K,0 4K+202 2K,0 B 26 27 28 29 30 31 33 34 35 Save/Exit
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- OnCourse Connect Assessment: Chemistry x Copy of spread_of_islar x = The Spread of Islam -G x M Inbox (904) - aarojame A Classes boncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 D TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-7 (AARON JAMES, ID: 12390724) A student dissolved 15 grams of pure acetic acid (CH,COOH) in enough water to make 100. milliliters of solution. Given the atomic masses provided on the periodic table, what is the molarity (M) of the acetic acid solution? a 0.025 molar D0.40 molar © 2.5 molar O 4 molar A B B 1 2 4 5 6 7 8 9 10 3. O Save/Exit 4 sn TESSAssessment Chemistry x Copy of spread of ista X E The Spread of Islam- x oncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 N hbox (004) aarolamex Clase D TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMSTRY1IARON JAMES ID 12390724) Aluminum (Al) reacts with chlorine (Cl,) gas to form aluminum chloride. Given the position of aluminum in the periodic table, what charge should the aluminum ion have in this compound? -5 +1 +3 + (P O A O B O D Save/Exit 1 4 5 6 8 9 10 US ASUS因 + II P 8 团 w/ S - Cameron Hite Learn b Chemistry Questions & Answers + A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IVDWKVW_BBZZI6tTytly4Fcfu6zOtOf8oMM9sLjOBhHfJ6ZNhysAi_9KCqM8FRGCtiPxvdUuxrTTETxcEo9QVTr9NhEkLqSLo?1oBw7QYjlbav. E O CHEMICAL REACTIONS 0/3 Cameron V Solving for a reactant in solution One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate solution. Any chloride anions in solution will combine with the silver cations to produce bright white silver chloride precipitate. Suppose an EPA chemist tests a 200. mL sample of groundwater known to be contaminated with tin(II) chloride, which would react with silver nitrate solution like this: SnCl,(aq) + 2 AgNO,(aq) → 2 AgCl(s) + Sn(NO,),(aq) The chemist adds 23.0 mM silver nitrate solution to the sample until silver chloride stops forming. He then washes, dries, and weighs the precipitate. He finds he has collected 6.8 of silver…
- क Rb ALEKS Chemistry- 2021FA-CHI X A ALEKS - Griffin Barden - Learn eks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-JcZzdcvSCzsqTCIDqNGV3bKqhMfPmUcQ4EDeRİLhu6AbUmc3VVdLPcASZ3o67Wr4xcXIZmcLfpPf_PLSp4nj4wgn0SQA3P0?1oBw7QYjlI O THERMOCHEMISTRY Understanding the definitions of heat and work A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) The temperature of the water bath is monitored, and it is determined from this data that 259. kJ of heat flows into the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the piston does 322. kJ of work on the system during the reaction. gases exothermic Is the reaction exothermic or endothermic? endothermic dn O…K Haylee Scott - cp Zoom meeting lin com/web/viewer.html?state%=D%7B'ids %3A%5B"1zOflgo1GoQFrdviJ6PWx8L3h2j4uav5n"%5D%2C"action"%3A'open C Clever | Portal A Classroom https://sso.theleam. M Oro Grande Elemen. W Yearbook Aven ue Period 5 Scien. Haylee Scott - cprr061.pdf Building Vocabulary From the list below, choose the term that best completes each sentence. matter physical change endothermic reaction chemical change chemistry precipitate exothermic reaction 7. Any change that alters a substance without changing it into another substance is a(n) 8. is anything that has mass and takes up space. 9. A reaction that releases energy in the form of heat is called a(n) 10. A(n) absorbed. 11. A chemical reaction is also referred to as a(n) is a reaction in which energy is 12. A(n) a chemical reaction. is a solid formed from a solution during 13. is the study of the properties of matter and how matter changes. OPearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved…OnCourse Connect Assessment: Chemistry x 4 Copy of spread of islarX E The Spread of Islam- 0 x M Inbox (904) - aarojame X A Classes b oncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 TPSS Bookmarks HEMISTRY BENCHMARK TEST 01 EMISTRY I 12-7 (AARON JAMES, ID: 12390724) Some students are modeling covalent bonds with brief descriptions and Lewis dot diagrams, using arrows to show electron movement. Which model best demonstrates covalent bonding in bromine chloride (BrCI)? O: Br- . CI: Cl transfers one e to Br Brj All es from Cl and Br are shared and move freely ©: Br. CI : Br transfers one e to CI Save/Exit 3 4 5 6 8 6. 10 11 ASUS
- O Course Home b Chemistry Question | bartleby G indivuials with austium good to -> A openvellum.ecollege.com/course.html?courseld=16561285&OpenVellumHMAC=446c877376a9bc7ac878d8ad119f4717#10001 Q * E Apps G Gmail O Maps E Connect - To Do As... с ОССС Мoodle P chem work b help Balance Chemical E. YouTube Part A Classify the following molecule according to its functional group. H H H | H-C-C-N-C-C-H | | | | H H H H Enter the name of the class of organic compound. • View Available Hint(s) This molecule is classified as a(n) Submit Part B Classify the following molecule according to its functional group. CH3CH2CH2COOH The molecule contains a(n) functional group. Submit Request Answer 11:01 PM O Type here to search 99+ 3/2/2021 I-Znt x A ALEKS вЬ Еxcel 20 х Yuzu Re x U Labflow x O COVID-1 x e Daily Cri x O Among 8 GivePu A www-awn.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-liJOkWynm4w-aQ-rw-zRhgRnayfmbBs65spECOJQ0Zacn81gbBjC9 B Blackboard O Mail - Ava Schied.. O UAConnect 9 Biology Syllabus H Labflow - Courses V Explore - HogSync ? Packback 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: CS,(9)+30,(9) - CO2(9)+2 SO,(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 © 2020 McGraw-Hill Educa MacBook Pro II00 %2A # 3. 5o09 awww.awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-lijulplKKWv4bwenmyrLYoBHBAAsJtmzj53GErnx_viTdHblGMF9jvgkSu_nrizREmdQXHPJbMzqOmOrXJcuonZITOhB66q?1oBw7QYlbav. LEKS-Courtney Wh New Tab + x O CHEMICAL REACTIONS Percent yield of chemical reactions Courtney S0 OC Gaseous butane CH. reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) and gaseous water (H,0). If 2.32 g of water is produced from the reaction of 1.74 g of butane and 10.2 g of oxygen gas, calculate the percent yield of water. Be sure your answer has the correct number of significant digits in it. % 固 Explanation Check ©2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility 24 %23 2 4. 9. 5. 8. by k 4 69 C. alt 123
- 5cd_i-5c7IV_IVquz8U4U02epq7z4kBnpYZ5iA/edit & nsions Help EB Ga... estions: 1 2 11 + BIU Key Words: global warming et 3 1. Why is oxygen NOT a greenhouse gas? A 4 > DOE-E X-E greenhouse gas 6 infrared energy 3. The atmosphere on the planet Venus is almost 96 % carbon dioxide. What effect might its concentration of carbon dioxide have on the average surface temperature on Venus? is not a greenhouse gas because it is transparent to infrared light. and greenhouse gasses absorb oxygen infrared radiations. meaning it can not absorb heat. 2. Why is the effect of greenhouse gases in the atmosphere similar to the effect of glass surrounding a greenhouse? Page 3: The Structure of Greenhouse Gases Questions 4. What effect does an increase in the atmospheric carbon dioxide levels (and therefore rising temperatures) have on the amount of water vapor in the atmosphere? Why? 3 7 I 5. Both coal and natural gas can be burned to generate electricity. However, burning natural gas produces about half the…MALEKS M Gmail ▬▬ 个 YouTube a X ALEKS - Rafia Riaz - Learn X Maps D Translate www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-lvdw7xgLCkqMfg8yaFKbD9GafJstkYLIJnusWtY-MBckoyqj9qFtHEkTFh5e-b9D0Ng1h9QM42... Q O ACIDS AND BASES Predicting acid or base strength from the conjugate News species H₂O Explanation Bro Order these chemical species by increasing pH of an 0.1 M aqueous solution of each. That is, imagine making an 0.1 M solution of each species. Select 1 next to the species that makes the solution with the lowest pH. Select 2 next to the species that makes the solution with the next higher pH, and so on. H₂0* HF Notice that some of the rankings have been filled in for you already. Also notice that water is on the list. For that particular case, just compare the pH of pure water to the pH of the other solutions. Note for advanced students: for all charged species, you may assume the necessary counterions act as neither acids nor bases. CH₂CH₂COOH b Answered: O ACIDS AND HBrO…CUTE ASS Gwinn X B Homepage-2021S x A Classwork for 2021 x E Danesha Patterson x Commonlit | The S docs.google.com/document/d/1TNETJ72LOKTHX-Ab-VC2FSAnLbFjT2a5pa79lj8 CommonLit | The Scramble for Africa |Free Reading Passages and Literac. izzes - 2021S1 H. commonlit.org anesha Patterson - Copy of Stoichiometry DLD Review 2020 (2).DOCX @ e Edit View Insert Format Tools Add-ons Help Last edit was 2 days ago E A, P Normal text Arlal 100% +BIUA E = E E tE 1E E - E - 4. 11 w .. gi - 2 3. 4 7 **Draw your T-charts on a piece of paper and take a pic to upload*** Use the equation given below for questions 1-3 , - 1co, + 2 H,O How many moles of methane (CH,) are needed to produce 3.7 moles of water (H,O)? 1CH, + 20, 1. 2. How many grams of oxygen (0,) react if the reaction produces 0.9 moles of carbon dioxide (CO,)? How many grams of water (H,O) are produced if 136 grams of methane (CH,) react completely in this reaction? If you start with 136 grams of methane (CH4), what is the theoretical…