Organic formulae Study guides, Study notes & Summaries
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AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Mark scheme June 2022
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AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Mark scheme June 2022. MARK SCHEME – AS CHEMISTRY – 7404/2 – JUNE 2022 
Organic names 
As a general principle, non-IUPAC names or incorrect spelling or incomplete names 
should not gain credit. Some illustrations are given here. 
Unnecessary but not wrong numbers will not be penalised such as the number ‘2’ in 2- 
methylpropane or the number ‘1’ in 2-chlorobutan-1-oic acid. 
but-2-ol should be butan-2-ol 
2-hydroxybut...
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Edexcel a level chemistry paper 2 mark scheme june 2023
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Mark Scheme (Results) 
Summer 2023 
Pearson Edexcel GCE 
In Chemistry (9CH0) 
Paper 02: Advanced Organic and Physical 
Chemistry 
Edexcel and BTEC Qualifications 
Edexcel and BTEC qualifications come from Pearson, the world’s leading learning 
company. We provide a wide range of qualifications including academic, 
vocational, occupational and specific programmes for employers. For further 
information visit our qualifications websites at or 
 for our BTEC qualifications. 
Alternatively, you c...
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CHEM 219 Module 1 Problem Set Principles of Organic Chemistry with Lab Gallaher Portage Learning.
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CHEM 219 Module 1 Problem Set Principles of Organic Chemistry with Lab Gallaher Portage Learning. 
Score for this quiz: 10 out of 10 
Submitted Jul 25 at 8:42pm 
This attempt took 1,135 minutes. 
Question 1 0 / 0 pts 
Your Answer: 
On a piece of scratch paper, write out the Lewis Dot Diagram for each of 
the indicated elements and determine the following for each: 
a) The number of Lone Pairs the atom possesses in its valence 
shell. 
b) The number of Unpaired Electrons the atom possesses in its...
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AQA A-Level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Mark scheme June 2022
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AQA A-Level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Mark scheme June 2022. Brown colour removed Goes colourless 
Allow (orange) brown to colourless 
Allow purple to colourless 
1 
(AO3) 
Question Answers Additional Comments/Guidelines Mark 
01.5 
As T increases rate (1/t ) increases OR time for completion decreases 
Exponentially 
OR 
By a greater/ increasing factor 
Many more particles have E ≥ Ea 
Or rate increases more and more as temp 
increases i.e. description of exponen...
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Edexcel a level chemistry question paper 2 june 2023 + mark scheme
- Exam (elaborations) • 66 pages • 2023
- Available in package deal
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- R242,07
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Mark Scheme (Results) 
Summer 2023 
Pearson Edexcel GCE 
In Chemistry (9CH0) 
Paper 02: Advanced Organic and Physical 
ChemistryEdexcel and BTEC Qualifications 
Edexcel and BTEC qualifications come from Pearson, the world’s leading learning 
company. We provide a wide range of qualifications including academic, 
vocational, occupational and specific programmes for employers. For further 
information visit our qualifications websites at or 
 for our BTEC qualifications. 
Alternatively, you can...
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PORTAGE CHEMISTRY 219 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+
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1 
PORTAGE CHEMISTRY 219 EXAM | 
QUESTIONS & ANSWERS (VERIFIED) | 
LATEST UPDATE | GRADED A+ 
The lone pairs in a LDD are equal to: 
Correct Answer: The 2 dots 
The unpaired electrons are equal to: 
Correct Answer: The 1 dot 
What is the number of bonds an atom can form, equal to? 
Correct Answer: Their unpaired electrons 
Find the lone pair, the unpaired electrons and the bonds of Oxygen. 
Correct Answer: 2, 2, 2 
What is organic chemistry? 
Correct Answer: The study of compounds that contai...
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aqa_a_level_chemistry_7405_1_paper_1and_2_inorganic_and_physical_chemistry_exam_and__mark_scheme
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A-level 
CHEMISTRY 
7405/1 
Paper 1 Inorganic and Physical Chemistry 
Mark scheme 
June 2023 
Version: 1.0 Final 
AQA A-level CHEMISTRY 7405-1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 2023, 
Exams for Chemistry 
*206A74051/MS* 
 
AQA A-level CHEMISTRY 7405-1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 
2022, Exams for Chemistry 
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant 
questions, by a panel of subject teach...
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2024 Chemistry Key words
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Activation energy - The minmum amount of energy required for a reaction proceed 
 
R - Energy released when the bond products form 
 
X - An unstable intermediate compound formed during the course of the reaction 
 
Delta H - change in enthalpy of heat in the reaction 
 
Net amount of energy absorbed or released during the reaction 
 
Energy of product - energy of reactants 
 
Catalyst - A substance that speeds up the rate of a chemical reaction by lowering the activation energy by taking it th...
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AQA 2023 AS CHEMISTRY QUESTIONS WITH 100% CORRECT ANSWERS
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AQA 2023 AS CHEMISTRY QUESTIONS WITH 100% CORRECT 
ANSWERS 
Absolute temperature - ANSWERS Temperature measured in Kelvin 
Absolute zero - ANSWERS The lowest possible temperature theoretically achieveable - 
273.15 degrees celius or zero Kelvin 
Acceleration - ANSWERS The stage in mass spectrometry where positive ions are 
speeded up by an electric field 
Acid rain - ANSWERS Rain that has been acidified by pollutants such as sulfur dioxide 
Actual yield - ANSWERS Mass of product obtained in a ...
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AQA A-level CHEMISTRY 7405-1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 2023, Exams for Chemistry
- Exam (elaborations) • 29 pages • 2024
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AQA A-level CHEMISTRY 7405-1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 
2023 Exams for Chemistry 
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant 
questions, by a panel of subject teachers. This mark scheme includes any amendments made at the 
standardisation events which all associates participate in and is the scheme which was used by them in 
this examination. The standardisation process ensures that the mark scheme covers the...