Exams for chemistry - Study guides, Class notes & Summaries

AQA A-level CHEMISTRY 74051 Paper 1 Inorganic and Physical Chemistry Mark scheme January 2023, Exams for C

M1 Δf H = Δ a H (Sr) + 2ΔaH (Cl) + Δ 1st IE H (Sr) + Δ 2nd IE H (Sr) + 2ΔEA H(Cl) + ΔLEH (Sr) 1 Or – 828 = 164 + (2 x 121) + 548 + 1060 + (2 xΔEA H) + (– 2112) 01.1 M2 2 x ΔEA H = – 730 1 M3 ΔEA H = – 365 (kJ mol–1 ) Allow M3 = M2÷2 (+) 365, –304.5, and –730 = 2 marks 1 (+) 304.5, (+) 730 and –609 = 1 mark (+) 609 = 0 marks 11 –3889BaCl2 01.2 –2493MgO –2018MgCl2 1 All three lines must be shown

1 Δf H = Δ a H (Sr) + 2ΔaH (Cl) + Δ 1st IE H (Sr) + Δ 2nd IE H (Sr) + 2ΔEA H(Cl) + ΔLEH (Sr) 1 Or – 828 = 164 + (2 x 121) + 548 + 1060 + (2 xΔEA H) + (– 2112) 01.1 M2 2 x ΔEA H = – 730 1 M3 ΔEA H = – 365 (kJ mol–1 ) Allow M3 = M2÷2 (+) 365, –304.5, and –730 = 2 marks 1 (+) 304.5, (+) 730 and –609 = 1 mark (+) 609 = 0 marks 11 –3889BaCl2 01.2 –2493MgO –2018MgCl2 1 All three lines must be shown MARK SCHEME – A-LEVEL CHEMISTRY – 7405/1 – JUNE...

AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganicand Physical Chemistry Mark scheme June 2022, Exams for Chemistry AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 202 Chemistry Chamberlain College of Nursing 33 pag. AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 2022, Exams for Chemistry AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 2021 Version: 1.0 Final A-le...

AQA A-level CHEMISTRY 74051 Paper 1 Inorganic and Physical Chemistry Mark scheme January 2023, Exams for C

AQA A-level CHEMISTRY 74051 Paper 1 Inorganic and Physical Chemistry Mark scheme January 2023, Exams for C

TEST BANK FOR ORGANIC CHEMISTRY 6TH EDITION BY JANICE SMITH, VERIFIED CHAPTERS 1 - 29 [UPDATED VERSION 2024] QUESTIONS AND 100%CORRECT COMPLETE ANSWERS WITH NGN QUESTIONS AND RATIONALES WELL EXPLAINED AND VERIFIED COMPLETELY BY EXPERTS AND GRADED A+ ALREADY PASSED!!!!!!!! LATEST UPDATE 2024 WITH 100% GUARANTEE PASS (ALL YOU NEED TO PASS YOUR EXAMS) Arrange the following bonds in decreasing order of ionic character, putting the most ionic first. A) I > II > III > IV B) IV> II > I &...

AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 2022, Exams for Chemistry

AQA A-level CHEMISTRY 7405-1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 2022, Exams for Chemistry