Popular courses 'CHEM 238' at CHEM 238
CHEM 238 Study guides, Class notes & Summaries
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Tamu Chem 238 Final Exam Questions and Answers 100% Solved | Already Passed
- Exam (elaborations) • 25 pages • 2024
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1. Reaction of ethyl magnesium bromide with water will generate? 
a. ethanol 
b. ethane 
c. butane 
d. ethyl magnesium hydroxide 
e. a peroxide - b 
2. Under conditions of thermodynamic control, product distribution is governed by: 
a. the relative stabilities of the products 
b. the relative energies of the transition states leading to the products 
c. the rate at which each product is formed 
d. a and b 
e. b and c - a 
3. Which of the following statements is false for the reduction of camphor...
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Chem_mark_2020_2H (1
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Chem_mark_2020_2H (1
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AQA GCSE COMBINED SCIENCE TRILOGY :8464/C/1H June 2020 Version: 1.0 Final Mark Scheme
- Exam (elaborations) • 20 pages • 2022
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AQA GCSE COMBINED SCIENCE TRILOGY :8464/C/1H June 2020 Version: 1.0 Final Mark Scheme
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GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H 202-2021 MARKING SCHEME
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This applies to questions requiring a set number of responses, but for which students have 
provided extra responses. The general principle to be followed in such a situation is that ‘right + 
wrong = wrong’. 
Each error / contradiction negates each correct response. So, if the number of error / 
contradictions equals or exceeds the number of marks available for the question, no marks can be 
awarded. 
However, responses considered to be neutral (indicated as * in example 1) are not penalise...
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GCSE COMBINED SCIENCE: TRILOGY 8464/C/1H Chemistry Paper 1H 2020-2021 marking scheme
- Exam (elaborations) • 20 pages • 2022
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This applies to questions requiring a set number of responses, but for which students have 
provided extra responses. The general principle to be followed in such a situation is that ‘right + 
wrong = wrong’. 
Each error / contradiction negates each correct response. So, if the number of error / 
contradictions equals or exceeds the number of marks available for the question, no marks can be 
awarded. 
However, responses considered to be neutral (indicated as * in example 1) are not penalise...
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GCSE COMBINED SCIENCE: TRILOGY Higher Tier Chemistry Paper 2H
- Exam (elaborations) • 28 pages • 2022
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AQA GCSE 
COMBINED SCIENCE: TRILOGY 
Higher Tier 
Chemistry Paper 2H
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AQA GCSE COMBINED SCIENCE: TRILOGY 8464/B/2H Biology Paper 2H Mark scheme June 2020
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AQA GCSE COMBINED SCIENCE: TRILOGY 8464/B/2H Biology Paper 2H Mark scheme June 2020-2022
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GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H Mark scheme June 2020
- Exam (elaborations) • 19 pages • 2022
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GCSE 
COMBINED SCIENCE: TRILOGY 
8464/C/2H 
Chemistry Paper 2H 
Mark scheme 
June 2020-2022
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GCSE COMBINED SCIENCE: TRILOGY 8464/C/1H Chemistry Paper 1H Mark scheme June 2020
- Exam (elaborations) • 20 pages • 2022
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- $9.49
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GCSE 
COMBINED SCIENCE: TRILOGY 
8464/C/1H 
Chemistry Paper 1H 
Mark scheme 
June 2020
-
GCSE COMBINED SCIENCE: TRILOGY 8464/B/2H Biology Paper 2H Mark scheme June 2020
- Exam (elaborations) • 20 pages • 2022
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- $12.49
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GCSE 
COMBINED SCIENCE: TRILOGY 
8464/B/2H 
Biology Paper 2H 
Mark scheme 
June 2020