Isotopes at - Study guides, Class notes & Summaries
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AQA AS CHEMISTRY 7404/1 Paper 1 Inorganic and Physical Chemistry Version: 1.0 Final *JUN237404101* IB/M/Jun23/E7 7404/1/ QUESTION PAPER & MARKING SCHEME/ [MERGED] Mark scheme June 2023
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AQA 
AS 
CHEMISTRY 
7404/1 
Paper 1 Inorganic and Physical Chemistry 
Version: 1.0 Final 
*JUN* 
IB/M/Jun23/E7 7404/1 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
8 
Section B 
TOTAL 
Tuesday 16 May 2023 Morning 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. 
Instructi...
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2023 AQA AS CHEMISTRY 7404/1 Paper 1 Inorganic and Physical Chemistry Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]
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2023 AQA AS CHEMISTRY 7404/1 Paper 1 
Inorganic and Physical Chemistry Question 
Paper & Mark scheme (Merged) June 2023 
[VERIFIED] 
Please write clearly in block capitals. 
Centre number 
Candidate number 
Surname 
Forename(s) 
Candidate signature 
I declare this is my own work. 
AS 
CHEMISTRY 
Paper 1 Inorganic and Physical Chemistry 
Tuesday 16 May 2023 Morning Time allowed: 1 hour 30 minutes 
Materials 
For this paper you must have: 
• the Periodic Table/Data Sheet, provided as an inser...
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Life 102 Exam 1 CSU Arthun Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test
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At what organizational level is life's uniformity most evident? Most evident in cells 
At what organizational level is life diversity most evident? Most evident in organisms 
How do Atoms fill their Valence shell? Donate or accept electrons from another atom or 
two atoms can share an electron pair creating a covalent bond. 
What happens when an atom gains or loses an electron? It becomes ionic 
96% of living mater is composed of which elements? Carbon, Nitrogen, Hydrogen, 
Oxygen (HONC) 
How c...
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NMTCB PET certification Review questions with correct answers
- Exam (elaborations) • 33 pages • 2023
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Rb-82 Genertaor Alert Level Answer 14L of eleute volume reached, or Sr-82 level 0.002uCi/mCi of Rb-82, or Sr-85 level 0.02uCi/mCi of Rb-82 
 
Actions for Rb82 Generator Alert Level Answer Test after every 750 mL has passed through generator 
 
Stop using Rb-82 generator if Answer 17L of eleute volume reached, or 42 days post calibration date, or Sr82 levenis 0.01uCi/mCi of Rb82, or Sr85 level reaches 0.1uCi/mCi of Rb82 
 
Cyclotron produced isotopes and half-life Answer C11, 20.3 min; N13 9.97 m...
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AQA GCSE CHEMISTRY 8462/1F Paper 1 Foundation Tier Version: 1.0 Final *JUN2384621F01* IB/M/Jun23/E11 8462/1F QUESTION PAPER & MARKING SCHEME/ [MERGED]
- Exam (elaborations) • 71 pages • 2024
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AQA 
GCSE 
CHEMISTRY 
8462/1F 
Paper 1 Foundation Tier 
Version: 1.0 Final 
*JUN2384621F01* 
IB/M/Jun23/E11 
8462/1F 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
TOTAL 
Monday 22 May 2023 Morning 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 box...
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AQA AS PHYSICS 7407/1 Paper 1 Question Paper + Mark scheme [MERGED] June 2022 *JUN227407101* IB/M/Jun22/E8 7407/1 For Examiner’s Use Question Mark 1 2
- Exam (elaborations) • 61 pages • 2023
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AQA 
AS 
PHYSICS 
7407/1 
Paper 1 
Question Paper + Mark scheme [MERGED] 
June 2022 
*JUN* 
IB/M/Jun22/E8 7407/1 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
8 
TOTAL 
Materials 
For this paper you must have: 
• a pencil and a ruler 
• a scientific calculator 
• a Data and Formulae Booklet 
• a protractor. 
Instructions 
• Use black ink or black ball-point pen. 
• Fill in the boxes at the top of this page. 
• Answer all questions. 
• You must answer the questions in...
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Biology 1201 Final Exam Moroney LSU Questions With Correct Answers!!
- Exam (elaborations) • 12 pages • 2023
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An element has 8 protons, 9 neutrons, and 8 electrons. What are its atomic number and mass? - 8 
and 17 
How many and what type of bonds does sulfur usually form in biology? - 2 covalent 
A molecule that has all non polar covalent bonds would be________. - hydrophobic 
What substance makes up the interior of a potato tuber? - starch 
What is an example of a lipid? - triglyceride 
One characteristic shared by sucrose, lactose, and maltose is that __________. -they are all 
dissacharides 
The over...
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2023 AQA GCSE COMBINED SCIENCE: TRILOGY 8464/P/1F Physics Paper 1F Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]
- Exam (elaborations) • 57 pages • 2024
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2023 AQA GCSE COMBINED SCIENCE: TRILOGY 8464/P/1F Physics Paper 
1F Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] 
Materials 
For this paper you must have: 
• a ruler 
• a scientific calculator 
• the Physics Equations Sheet (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 this page. 
• Answer all questions in the spaces provided. 
• If you need extra space for your answ...
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EEB 2100 UConn Exam 1 Questions + Answers Graded A+
- Exam (elaborations) • 16 pages • 2024
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Main questions of course - 1. How do humans alter earth 
2. how do human alterations affect the biosphere 
3. What can be done to alleviate human alterations of the biosphere 
Greatest ecological impacts of humans(most to least) - 1. Nitrogen fixation 
2. Water use 
3. Land transformation 
4. CO2 concentration rise 
5. Ocean acidification 
6. Bird extinction 
7. Plant invasion 
Planetary Boundaries - Limits between which global systems must operate to prevent abrupt and 
irreversible environment...
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CSP1501 Assignment 1 2024 (Solutions)
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CSP1501 Assignment 1 2024 (Solutions) 
 
Question 1 
Not yet answered 
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Question text 
Which one of the following options lists only inorganic compounds? 
a. 
Water, salts, gas 
b. 
Carbohydrates, protein, fats 
c. 
Salts, gas, carbohydrates 
d. 
Water, oxygen, carbon dioxide, electrolytes 
Clear my choice 
Question 2 
Not yet answered 
Marked out of 1.00 
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Question text 
Select the correct symbol for Dubnium 
a. 
Db 
b. 
D 
c. 
Dm 
d. 
Du 
Questio...
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