Significant figures Study guides, Class notes & Summaries
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AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022 *JUN227404201* IB/M/Jun22/E7 7404/2 For Examiner’s Use Question Mark 1
- Exam (elaborations) • 63 pages • 2023 Popular
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AQA 
AS 
CHEMISTRY 
7404/2 
Paper 2 Organic and Physical Chemistry 
Question Paper + Mark scheme [MERGED] 
June 2022 
*JUN* 
IB/M/Jun22/E7 7404/2 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
Section B 
TOTAL 
Time allowed: 1 hour 30 minutes 
Materials 
For this paper you must have: 
• the Periodic Table/Data Sheet, provided as an insert (enclosed) 
• a ruler with millimetre measurements 
• a scientific calculator, which you are expected to use where appropriate. 
Instructions...
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EDEXCEL AS LEVEL CHEMISTRY QUESTION PAPER 2 JUNE 2023.
- Exam (elaborations) • 29 pages • 2023
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EDEXCEL AS LEVEL 
CHEMISTRY QUESTION 
PAPER 2 JUNE 2023. 
Centre Number Candidate Number 
*P71927A0128* 
Turn over 
Total Marks 
Candidate surname Other names 
Please check the examination details below before entering your candidate information 
Paper 
reference 
 
Tuesday 23 May 2023 
P71927A 
©2023 Pearson Education Ltd. 
N:1/1/1/ 
Instructions 
• Use black ink or ball‑point pen. 
• If pencil is used for diagrams/sketches/graphs it must be dark (HB or B). 
• Fill in the boxes ...
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AQA GCSE CHEMISTRY 8462/2H Paper 2 Higher Tier Question Paper + Mark scheme [MERGED] June 2022 *jUN2284622H01* IB/M/Jun22/E9 8462/2H For Examiner’s Use Question Mark 1
- Exam (elaborations) • 68 pages • 2023
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AQA 
GCSE 
CHEMISTRY 
8462/2H 
Paper 2 Higher Tier 
Question Paper + Mark scheme [MERGED] 
June 2022 
*jUNH01* 
IB/M/Jun22/E9 8462/2H 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
8 
TOTAL 
 
 Time allowed: 1 hour 45 minutes 
Materials 
For this paper you must have: 
• a ruler 
• a scientific calculator 
• the periodic table (enclosed). 
Instructions 
• Use black ink or black ball-point pen. 
• Pencil should only be used for drawing. 
• Fill in the boxes at the top of t...
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Testbank for College Physics from OpenStax College
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Testbank for College Physics from OpenStax College 
CONTENTS 
Contents 
......................................................................................................................................... 
2 
Preface 
.......................................................................................................................................... 
12 
Chapter 
1: 
Introduction: 
The 
Nature 
of 
Science 
and 
Physics 
....................................................... 
13 
1.2 ...
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Edexcel a level statistics question paper 3 june 2023 + mark scheme
- Exam (elaborations) • 44 pages • 2023
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Mark Scheme (Results) 
Summer 2023 
Pearson Edexcel GCE 
In Statistics (9ST0) 
Paper 03: Statistics In PracticeEdexcel and BTEC Qualifications 
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. 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 . Alternatively, you can get in touch with us using the 
details on our ...
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CHEM 103 Module 2 Exam (General Chemistry) – Portage Learning WITH COMPLETE SOLUTION UPDATED 2023|2024 RATED A+
- Exam (elaborations) • 19 pages • 2023
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Show the calculation of the molecular weight for the following 
compounds, reporting your answer to 2 places after the decimal. 
1. Al (SO ) 
2. C H NOBr 
2 4 3 
7 5 
1. Al (SO ) 
Al = 2 x 26.98 = 53.96 
S = 3 x 32.07 = 96.21 
O = 12 x 16.00 = 192 
2 4 3 
M2: Exam - Requires Respondus LockDown Browser + Webcam: General Chemistry I w/Lab-2021- Kozminski 
3/18 
Total Molecular Weight for Al (SO ) = 342.17 
2. C H NOBr 
C = 7 x 12.01 = 84.07 
H = 5 x 1.008 = 5.04 
N = 1 x 14.01 = 14.01 
O = 1 x 16....
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Edexcel a level statistics question paper 2 j une 2023 + mark scheme
- Exam (elaborations) • 47 pages • 2023
- Available in package deal
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Summer 2023 
Pearson Edexcel GCE 
In Statistics (9ST0) 
Paper 02: Statistical InferenceEdexcel and BTEC Qualifications 
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. 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 . Alternatively, you can get in touch with us using the 
details on our contact us page at 
Pear...
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Edexcel a level statistics question paper 1 j une 2023 + mark scheme
- Exam (elaborations) • 52 pages • 2023
- Available in package deal
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- $12.99
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Mark Scheme (Results) 
Summer 2023 
Pearson Edexcel GCE 
In Statistics (9ST0) 
Paper 01: Data and ProbabilityEdexcel and BTEC Qualifications 
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. 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 
. Alternatively, you can get in touch with us using the details on our con...
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Edexcel as level mathematics statistics question paper 21 may 2023
- Exam (elaborations) • 13 pages • 2024
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Please check the examination details below before entering your candidate information 
Candidate surname Other names 
Centre Number Candidate Number 
Pearson Edexcel Level 3 GCE 
Thursday 25 May 2023 
Afternoon Paper reference 8MA0/21 
Total Marks 
Mathematics 
Advanced Subsidiary 
PAPER 21: Statistics 
You must have: 
Mathematical Formulae and Statistical Tables (Green), calculator 
Candidates may use any calculator allowed by Pearson regulations. Calculators 
must not have the facility for sym...
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CHEM 103 MODULE 3 EXAM WITH ANSWERS
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CHEM 103 MODULE 3 EXAM WITH ANSWERS 
 
 
Click this link to access the Periodic Table. This may be helpful throughout 
the exam. 
 
 
A reaction between HCl and NaOH is being studied in a styrofoam coffee cup with a lid and the heat given off is measured by means of a thermometer immersed in the reaction mixture. Enter the correct thermochemistry term to describe the item listed. 
 
 
1.	The type of thermochemical process 
 
2.	The calorimeter and mixture of HCl + NaOH Your Answer: 
1.	The typ...