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- Third Math X Microsoft T x Microsoft Te x DOCX File v X 4. Personal - → C A app.edulastic.com/student/assessment/60525b29af74cf0008c2b68f/class E- > NEXT Question 17/19 A BOOKMARK 17 Use the image of a partial periodic table to answer questions 17, 18 and 19. 18 2 Не H. 1 Hyder 2 Hellum 4.00 101 13 14 15 16 17 4. 6. C 8 10 Ne 2. Li Be B N F Lthum 694 Berylum Borge Carton 10.81 1 12.01 Devgen 16.00 Puine Neon 20.18 9.01 14.01 19.00 11 12 13 14 15 16 17 18 Ar Na Mg sum 24.31 Al CI 3. Sodum 22.99 Si See 26.09 Aumin Argon 39.95 Cherine 3. 30.97 26.98 32.06 15 45 19 K 31 20 21 32 Ge 33 As 34 Ca Sc 35 Br 36 Kr Ga Caum 69.72 Se ... Protacsum 39. 10 Caldum 40.08 Arsenir Sele Bromine 44.96 72.63 74.92 78.97 79 90 3.80 38 37 Rb 39 Y. 49 50 Sn 51 Sb 52 53 54 Sr In Te Xe ... Srentium erum due 114.82 emony Taluum Jodine 5.47 87.62 118.71 121.76 127.60 126.90 131.29 Which elements have more protons per atom than phosphorus? bromine and sulfur B helium and nitrogen nitrogen and sodium sodium and…pnc.com/women O Dashboa x Course X O The Wav x E CP grou X M Docume x E 3- Qual X G If you ha Xx course.html?courseld=16985674&OpenVellumHMAC=624ef941a8d 10e711a39b3488025ef9a#10001 v Correct S has 16 electrons. The noble gas that precedes S on the periodic table is neon, so the inner electron configuration is [Nel. Obtain the outer electron configuration by tracing the elements between Ne and S and assigning electrons to the appropriate orbitals. Because S is in row 3, as you trace across the row to S, which is in the third column of the p block, add two 3s electrons and three 3p electrons. As a result, the electron configuration for S is (Ne 3s 3p Part B Se Express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals. For example, He 2s 2p? should be entered as [He]2s^22p^2. Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part C P Pearson Copyright © 2021 Pearson Education Inc. All…OWLy2 | Online teaching and lea x genow.com/ilm/takeAssignment/takeCovalentActivity.do?locator=assignment-take Identify the noble gas that is isoelectronic with each of the following 1ons Ref (Express your answer as a chemical symbol.) a Ali Noble gas: 6. Te Noble gas: C. N° Noble gas d. Lit Noble gas: Sutunit AnsMer 1OIGm attempts remaining
- Given = 3.0 M Ca(oH)2 & 2.5L Looking For = g Ca (OH)2 (3.0M)X2.5 L) mol= 7.5 mol CaloH )2 M= mol mol = M × L = Calx40.08 = 40.08 | x 16.0 0 = 1le.00 I x 1.01 1. %3D 57.09 g/mol CacoH)2 7.5 mol CaloH)z 57.09 gCa(ott)428.189 I mol Ca(oH)2 CaloH2 The student got the answer wrong. Identify the error, explain the mistake in detail and fix it by providing the correct answer.Determine the chemical formula for each of the compounds. sodium sulfite: N22SO3 potassium phosphate: KH2PO4 Incorrect Incorrect silver sulfate: Ag2SO4 ammonium nitrate: NH4NO3 Incorrect Incorrect Question Source: MRG - General Chemistry| Publisher: University Sc MAR 29 MacBook Air 80 DII DD F3 F7 F8 F9 F10 F11 23 24 % & 4 9. { E Y U %1 F G J K M command option .... * 00 TCourse Home What is the formula of the comp x + llege.com/course.html?courseld=16518481&0penVellumHMAC%=Db534bf3de55a0e54c1664334c80f481b#10001 Consider an ion with the symbol Y formed from a representative element (Y is an unknown element, not yttrium). Part C If Y is in period 4, what is the element? You may want to reference (Pages 176 - 180) Section 6.3 while completing this problem. Express your answer as a chemical symbol.
- The graph to the right represents the potential energy vs. interatomic distance between two xenon atoms interacting via London dispersion forces. What happens to the kinetic energy (KE) of the atoms if the distance between them changes from point I to point II, and what causes this energy change? Change in KE Cause of Change A) Decreases KE decreases because attractive forces dominate at this distance range, which cause the atoms to lose speed and therefore also lose KE. B) Decreases KE decreases because repulsive forces dominate at this distance range, which cause the atoms to lose speed and therefore also lose KE. D) Increases KE increases because attractive forces dominate at this distance range, which cause the atoms to gain speed and therefore also gain KE. D) Increases KE increases because repulsive forces dominate at this distance range, which cause the atoms to gain speed and therefore also gain KE. E) No Change Because energy must be conserved, the kinetic energy of the system…(ii) Table 1 shows the atomic numbers and melting points of the elements in group 7. group 7 atomic number melting point (°C) fluorine 9. -220 chlorine 17 -101 bromine 35 -7 iodine 53 114 astatine 85 302 Table 1 Explain why the melting point increases as the atomic number increases.CCH5COONa + N OH + Na OH Cal what is x?
- kamalaa.n:1 love Tt ll 5G 1 TikTok 2H+ (ag) + 2e-- H2 (g) 0.000 2H20 (1) + 2e" - H2 (9) + 20H" (aq) -0.8277 H202 (aq) + 2H+ (aq) + 2e + 2H20 (1) 1.776 I2 (s) + 2e - 21 (aq) 2103- (aq) + 12H+ (aq) + 10e- + 12 (s) + 6H20 (1) 0.5355 1.195 Mg2+ (aq) + 2e + Mg (s) -2.372 Mn2+ (ag) + 2e" Mn (s) -1.185 Mno, + 4H+ (aq) + 2e - Mn2+ (aq) + 2H20 (1) 1.224 Mno4 (aq) + 8H+ (aq) + 5e" - Mn2+ (aq) + 4H20 (1) 1.507 Mno4 (aq) + 2H20 (1) + 3e - MnO2 (s) + 40H (aq) 0.595 HNO2 (aq) + H* (aq) + e- NO (g) + H20 (1) 0.983 N2 (9) + 4H20 (1) + 4e" - 40H" (aq) + N2H4 (aq) -1.16 NO3 (aq) + 4H* (aq) + 3e" - NO (9) + 2H20 (1) 0.957 Na* (aq) + e - Na (s) -2.71 Ni2+ (aq) + 2e- Ni (s) -0.257 02 (9) + 4H* (aq) + 4e" - 2H20 (1) 1.229 0.401 O2 (9) + 2H2O (1) + 4e - 40H (aq) 0.695 O2 (9) + 2H* (aq) + 2e - H2O2 (aq) -0.1262 Pb2+ (aq) + 2e"- Pb (s) -0.3588 PbSO4 (s) + H* (aq) + 2e Pb (s) + HSOA (ag) k Air 4) FII F10 F9 F7 F8 delete19 of 44 > © Macmillan Learning In the given three-dimensional molecular structure, the differently colored spheres represent different types of atoms. Write a molecular formula for this molecule. molecular formula: 4 R % 67 68 5 1 SPECIAL xº (g) ΔΣΩ λμπ X₁ X () 6 [] (s) Y (1) (aq) →>>> MacBook Pro The 11 7 U t CLR 8 K →>> 9 Rotate X You 9 Rotate Y ( 0 ☐C □H D Rotate Z 0 Zoom In P O Zoom Out Attempt A Label Atoms CDescribe the PHYSICAL PROPERTIES of the following Specifically, what type of matter is this? (e.g. halogen) substances (a) Potassium dichromate (Б) Glucose (C6H12O6) (c) Magnesium (d) Bromine, Br2 (e) NISO4-6H2O (f) Sulfur (g) lodine, I2 (h) Pbl2 (i) Copper () Stainless steel (k) Ethanol, C2H5OH (1) Zinc (m) |Hydrochloric acid (n) Aluminum (0) Ice