Repulsion Study guides, Class notes & Summaries
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AQA AS Physical Chemistry 2024 exam questions with 100% correct answers
- Exam (elaborations) • 29 pages • 2024
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AQA AS Physical Chemistry 2024 exam 
questions with 100% correct answers 
Who described atoms as solid spheres that make up different elements and when? - 
ANSWERS John Dalton in the 19th century 
Who suggested that atoms of a particular element had the same mass and atoms of 
different elements had different masses and when? - ANSWERS John Dalton in 1803 
Who discovered the electron and when? - ANSWERS JJ Thomson, 1897 discovered 
electrons proving atoms weren't indivisible or solid. 
New m...
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POWER ENGINEERING TECHNOLOGY (PET YR. 1): 4A ELECTROTECHNOLOGY & INSTRUMENTATION EXAM 100% CORRECT
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POWER ENGINEERING TECHNOLOGY 
(PET YR. 1): 4A ELECTROTECHNOLOGY 
& INSTRUMENTATION EXAM 100% 
 
CORRECT 
 
The unit that refers to a flow of electrons past a given point, over a specific period of time, is the: 
a. ampere 
b. volt 
c. ohm 
 
d. watt a 
 
_______ is a unit of electromotive force. 
a. the ampere 
b. the ohm 
c. the watt 
 
d. the volt d 
 
A basic law of electricity is, unlike charge attract eachother and like charges: 
a. repel eachother 
 
b. hold eachother 
 
c. attract eachoth...
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AQA 2023 AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry questions and answers verified
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AQA 2023 AS CHEMISTRY 7404/2 Paper 2 Organic and 
Physical Chemistry questions and answers verified 
What is the equation linking mass moles and MR? 
Mass=moles * MR 
What is the definition of Ar (relative atomic mass)? 
The average mass of an atom of an element compared to the mass of one twelfth of 
carbon 12. 
What does Mr stand for? 
Relative molecular mass 
Define relative isotopic mass. 
The mass of an isotope of an element compared to the mass of one twelfth of the mass 
of carbon 12 
...
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CETA Practice Test REAL EXAM QUESTIONS WITH VERIFIED CORRECT ANSWERS
- Exam (elaborations) • 25 pages • 2023
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CETA Practice Test REAL EXAM 
QUESTIONS WITH VERIFIED 
CORRECT ANSWERS 
1. What does the acronym ESD stand for? 
A. Electrostatic Discharge 
B. Electrostatic Device 
C. Electromagnetic Sensitivity Diac 
D. Electrostatic Damage 
- ANSWER A. 
Electrostatic Discharge 
2.Current amounts between ______ and _____ can be lethal. 
A. 
100mA, 200mA 
B. 
10mA, 33.3mA 
C. 
33.3, 75.6mA 
D. 
4mA, 10mA - ANSWER A. 
100mA, 200mA 
3. What is the number one concern in regards to electrical safety? 
A. 
Prope...
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Chem 142 Unit 1 Latest Update Graded A+
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Chem 142 Unit 1 Latest Update 
 
Graded A+ 
 
Thermodynamics The study of energy and its transformation 
 
Thermochemistry The study of chemical reactions and transformations and the energy 
changes that accompany these transformations 
 
Electrostatic Potential Energy Equation - k = constant 
 
- Q = the 2 charges (Eel is negative if the charges are opposite and positive if the charges are 
like) 
- d = distance between the two particles 
 
Potential Energy for like charges Repulsion; Positive;...
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CHEM 219 Module 2 Problem Set Principles of Organic Chemistry with Lab Gallaher Portage Learning.
- Exam (elaborations) • 16 pages • 2024
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CHEM 219 Module 2 Problem Set Principles of Organic Chemistry with Lab Gallaher Portage Learning. 
Score for this quiz: 10 out of 10 
Submitted Jul 31 at 5:44pm 
This attempt took 110 minutes. 
Question 1 Not yet graded / 0 pts 
Your Answer: 
Define hydrocarbon. 
A hydrocarbon is a fully saturated chain of carbons and hydrogens 
Answer: 
Molecules composed only of the elements carbon and 
hydrogen. 
Question 2 Not yet graded / 0 pts 
Your Answer: 
What are the two major classes of hydrocarbon co...
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CETA PRACTICE TEST QUESTIONS AND CORRECT ANSWERS AND RATIONALES|ALREADY GRADED A|
- Exam (elaborations) • 21 pages • 2024
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CETA PRACTICE TEST QUESTIONS 
AND CORRECT ANSWERS AND 
RATIONALES|ALREADY GRADED A| 
What does the acronym ESD stand for? 
A. 
Electrostatic Discharge 
B. 
Electrostatic Device 
C. 
Electromagnetic Sensitivity Diac 
D. 
Electrostatic Damage - ANSWER- A. 
Electrostatic Discharge 
Current amounts between ______ and _____ can be lethal. 
A. 
100mA, 200mA 
B. 
10mA, 33.3mA 
C. 
33.3, 75.6mA 
D. 
4mA, 10mA - ANSWER- A. 
100mA, 200mA 
What is the number one concern in regards to electrical safety? 
...
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AQA AS Physical Chemistry 2024 Exam Questions And Answers
- Exam (elaborations) • 29 pages • 2024
-
Available in package deal
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AQA AS Physical Chemistry 2024 Exam Questions And Answers 
 
Who described atoms as solid spheres that make up different elements and when? - ANSWER- John Dalton in the 19th century 
 
Who suggested that atoms of a particular element had the same mass and atoms of different elements had different masses and when? - ANSWER- John Dalton in 1803 
 
Who discovered the electron and when? - ANSWER- JJ Thomson, 1897 discovered electrons proving atoms weren't indivisible or solid. 
 
New model named pl...
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Chemistry AQA AS EXAM 2024 QUESTIONS WITH 100% CORRECT ANSWERS
- Exam (elaborations) • 10 pages • 2024
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Chemistry AQA AS EXAM 2024 QUESTIONS 
WITH 100% CORRECT ANSWERS 
Mass number - ANSWERS Total number of protons and neutrons. 
Atomic number - ANSWERS Numbers of protons in the nucleus and number of 
electrons in shells. 
Negative Ions - ANSWERS More electrons than protons. 
Positive ions - ANSWERS More protons than electrons. 
Relative isotopic mass - ANSWERS mass of an atom of an isotope of an element on a 
scale where an atom of carbon12 is 12. 
Relative atomic mass - ANSWERS average mass o...
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UCI Bio 93 Midterm 2 Questions and Answers 100% Pass
- Exam (elaborations) • 18 pages • 2024
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UCI Bio 93 Midterm 2 Questions and 
 
Answers 100% Pass 
 
What is a metabolic pathway? A pathway that a molecule goes through, resulting in a 
specific product. 
 
What is metabolism? The totality of an organisms chemical reactions 
 
Gibbs free energy Portion of a system that can perform work when temp and pressure are 
uniform throughout the system. 
 
What does a negative Delta G mean? A process that is spontaneous/exergonic 
 
What does spontaneous mean? Means that a process will occur. 
 
...
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