Z isomer Study guides, Revision 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
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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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MCAT entrance exam all subjects combined questions & answers latest update
- Exam (elaborations) • 196 pages • 2023 Popular
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m 
 
 
 
 
 
 
1.	Which of the following is the mRNA start codon in most cases? 
 
A.	UAA	B. AGU	C. AUG	D. UGA 
 
 
 
2.	Which of the types of RNA is the smallest? 
 
A.	mRNA	B. tRNA	C. rRNA	D. 
 
 
 
3.	Which of the following is not considered a pyrimidine? 
 
A.	C	B. T	C. U	D. G 
 
 
 
4.	Which of the following is paired correctly? 
 
A.	A-G	B. C-G	C. A-U	D. G-T 
 
 
 
5.	Which of the following characterizes a Western blot? 
 
A.	Antibody/protein hybridization	B. DNA/RNA combination	C. RNA ...
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Elsevier Adaptive Quizzes with Complete Solutions Already Passed
- Exam (elaborations) • 22 pages • 2023
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A radiologic technologist is working on barium and iodine. Which term does the 
radiologic technologist use to refer to 134/56 Ba and 131/53 I ? 
a. Isobar 
b. Isomer 
c. Isotope 
d. Isotone - Correct d. Isotone 
Isotones differ in their atomic numbers and mass numbers, but they have the same 
number of neutrons, that is, a constant for the quantity a (atomic number) - z (mass 
number) a-z. 
Types of ionizing radiation used in various techniques have different ranges of 
penetrability into the s...
-
Elsevier Adaptive Quizzes with Complete Solutions Already Passed
- Exam (elaborations) • 47 pages • 2024
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A radiologic technologist is working on barium and iodine. Which term does the 
radiologic technologist use to refer to 134/56 Ba and 131/53 I ? 
a. Isobar 
b. Isomer 
c. Isotope 
d. Isotone - Correct d. Isotone 
Isotones differ in their atomic numbers and mass numbers, but they have the same 
number of neutrons, that is, a constant for the quantity a (atomic number) - z (mass 
number) a-z. 
Types of ionizing radiation used in various techniques have different ranges of 
penetrability into the s...
-
Elsevier Adaptive Quizzes with Complete Solutions Already Passed
- Exam (elaborations) • 22 pages • 2023
- Available in package deal
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- £10.13
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Elsevier Adaptive Quizzes with Complete Solutions 
Already Passed 
A radiologic technologist is working on barium and iodine. Which term does the 
radiologic technologist use to refer to 134/56 Ba and 131/53 I ? 
a. Isobar 
b. Isomer 
c. Isotope 
d. Isotone - Correct d. Isotone 
Isotones differ in their atomic numbers and mass numbers, but they have the same 
number of neutrons, that is, a constant for the quantity a (atomic number) - z (mass 
number) a-z. 
Types of ionizing radiation used in va...
-
Elsevier Adaptive Quizzes with Complete Solutions Already Passed
- Exam (elaborations) • 22 pages • 2024
- Available in package deal
-
- £10.86
- + learn more
A radiologic technologist is working on barium and iodine. Which term does the 
radiologic technologist use to refer to 134/56 Ba and 131/53 I ? 
a. Isobar 
b. Isomer 
c. Isotope 
d. Isotone - Correct d. Isotone 
Isotones differ in their atomic numbers and mass numbers, but they have the same 
number of neutrons, that is, a constant for the quantity a (atomic number) - z (mass 
number) a-z. 
Types of ionizing radiation used in various techniques have different ranges of 
penetrability into the s...
-
Elsevier Adaptive Quizzes | Questions with 100% Correct Answers | Updated & Verified | 23 Pages
- Exam (elaborations) • 23 pages • 2023
- Available in package deal
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A radiologic technologist is working on barium and iodine. Which term does the radiologic 
technologist use to refer to 134/56 Ba and 131/53 I ? 
a. Isobar 
b. Isomer 
c. Isotope 
d. Isotone - d. Isotone 
Isotones differ in their atomic numbers and mass numbers, but they have the same number of 
neutrons, that is, a constant for the quantity a (atomic number) - z (mass number) a-z. 
Types of ionizing radiation used in various techniques have different ranges of penetrability into 
the skin. Whic...
-
Elsevier Adaptive Questions with correct answers
- Exam (elaborations) • 20 pages • 2023
- Available in package deal
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A radiologic technologist is working on barium and iodine. Which term does the radiologic technologist use to refer to 134/56 Ba and 131/53 I ? 
 
a. Isobar 
b. Isomer 
c. Isotope 
d. Isotone Answer d. Isotone 
 
Isotones differ in their atomic numbers and mass numbers, but they have the same number of neutrons, that is, a constant for the quantity a (atomic number) - z (mass number) a-z. 
 
Types of ionizing radiation used in various techniques have different ranges of penetrability into the sk...
-
AQA AS Organic Chemistry exam questions with 100% correct answers
- Exam (elaborations) • 17 pages • 2024
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AQA AS Organic Chemistry exam questions 
with 100% correct answers 
Define the term 'empirical formula' - ANSWERS A formula that gives the simplist whole 
number ration of atoms of each element in a compound 
Define the term 'molecular formula' - ANSWERS A way of representing molecules that 
shows the actual number of atoms of each element in a molecule 
Define the term 'General formula' - ANSWERS An algebraic formula that can describe 
any member of a family of compounds 
Define the t...
-
AQA AS Organic Chemistry exam questions with 100% correct answers
- Exam (elaborations) • 17 pages • 2024
- Available in package deal
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AQA AS Organic Chemistry exam questions 
with 100% correct answers 
Define the term 'empirical formula' - ANSWERS A formula that gives the simplist whole 
number ration of atoms of each element in a compound 
Define the term 'molecular formula' - ANSWERS A way of representing molecules that 
shows the actual number of atoms of each element in a molecule 
Define the term 'General formula' - ANSWERS An algebraic formula that can describe 
any member of a family of compounds 
Define the t...
-
AQA AS Organic Chemistry exam questions with 100% correct answers
- Exam (elaborations) • 17 pages • 2024
- Available in package deal
-
- £11.35
- + learn more
AQA AS Organic Chemistry exam questions 
with 100% correct answers 
Define the term 'empirical formula' - ANSWERS A formula that gives the simplist whole 
number ration of atoms of each element in a compound 
Define the term 'molecular formula' - ANSWERS A way of representing molecules that 
shows the actual number of atoms of each element in a molecule 
Define the term 'General formula' - ANSWERS An algebraic formula that can describe 
any member of a family of compounds 
Define the t...