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Q: Help with 18 please.
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Q: A student dissolves 14.1 g of potassium chloride (KCI)in 250. g of water in a well-insulated open…
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- Br (CH3)¿CuLi CuLi Br K H20 MgBr H20 M МоBrH20 NH H2SO4Chrome File Edit View History Bookmarks People Tab Window Help HOc Dashbc X E Buy Es: X G find so X © Periodi x A ALEKS X M Mathwa X Hcc Chapte x H New m x ト→ C A www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IQİHQRDYV_6Ux63SypJXz0Coxvwqgg4JkWI7Cge0xmXkyh... O GASES Using Charles's Law Jacqueline An arctic weather balloon is filled with 48.4 L of helium gas inside a prep shed. The temperature inside the shed is 9. °C. The balloon is then taken outside, where the temperature is -42. °C. Calculate the new volume of the balloon. You may assume the pressure on the balloon stays constant at exactly 1 atm. Round your answer to 3 significant digits.
- 1) ВНз, THF 2) NaOH, H2O2, H203. Corev was synthesizing a chemical in the laboratory. He used different purification techniques to try to obtain a pure compound. The melting point of the pure compound is 65 degrees. When he tested his compound in the lab the melting point he obtained was 62-68 degrees. Is the product he synthesized pure? 4A company was low on copper metal and decided to use some chemical additives just this once to some copper wiring they were installing in a house. How will this impact the conductivity of the wiring?_Na2SO4 + _AlCl3 => _Al2(SO4)3 + _NaCl
- ▼ Part B 2NO3(aq) +8H(aq) + 6e 3Fe(s) + 2NO3 (aq) +8H+ (aq) 3Fe(s)→→3Fe²+ (aq) + 6e →>> 2NO(g) + 4H₂0 (1) →3Fe²+ (aq) + 2NO(g) + 4H₂O(1) IVE ΑΣΦ Calculate El using the tabulated standard electrode potentials at 25 °C. cell Express your answer in volts to three significant figures. Eeell= 1.21 SWE Submit Previous Answers Request Answer 2+ X Incorrect; Try Again; 4 attempts remaining ? V stontiol buoubtrooting the electro naPlease answer questions 4a, 4b, and 4c. The questions are provided in the attached image. Thank you.Sign in to edit and save changes to this file. 1. 121 49ln→ 121 + "5oSn 2. 8Be → 2_ 3. 1°4BE → °1B + 4. 8437Rb → °+1e + 128 128 5. 55CS→ 54Xe 6. 131m "s6Ba → oy + 7. 23793Np →42HE + ...
- Moquie $0 219 OWLV2 keAssignment/takeCovalentActivity.do?locator-assignment-take In the following equation for a chemical reaction, the notation (s), (I), or (g) indicates whether the substance indicated is in the solid, liquid, or gaseous state. 2SO₂(g) + O₂(g) →→→2SO3(g) + energy The reaction is Q Search Identify each of the following as a product or a reactant: SO3(g) SO₂(g) 0₂(g) When the reaction takes place energy is Submit Answer 7 L M te OWLv2 | Online teaching and X * Use the References to access important values if needed for this question. Retry Entire Group K CO 144 www.yo up 8 more group attempts remaining L 11 b Answered: For the reaction 2 x + 111 P g P¹ ins prt sc. delete Previous backspace ^ GG 4 home GURN lock 7 home A 6:52 PM 5/14/2023 74 X InH CPBA 5 CO H₂ Pd/C 1. NaBH4 2. H3O+ Br NH3 :0 OHBalance the following chemical equation. C2H3CI + O2→CO2 + H2O + HCI Assume the coefficient of HCI is 2. What is the balanced equation? OC,H3CI +J02-co2 +H20+ 2HCI |02→]Co2 +H20+ 2HCI