Acceleration of electrons - Study guides, Class notes & Summaries
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AS Level Chemistry Complete Guide Question And Answers.
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Atomic number - correct answer Number of protons in an element 
 
Mass number - correct answer Number of protons and neutrons 
 
Ion - correct answer Electrically charged particle formed by the loss/gain of electrons 
 
Relative masses of P,N and E - correct answer 1,1, 1/2000 (respectively) 
 
Isotopes - correct answer Atoms of the same element with different number of neutrons but same number of protons. 
 
What are steps of mass spectroscopy? - correct answer Ionisation, Acceleration, Deflect...
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Freshman Physics Final UPDATED Exam Questions and CORRECT Answers
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Freshman Physics Final UPDATED Exam 
Questions and CORRECT Answers 
Absolute Zero - CORRECT ANSWER- Lowest possible temperature that any substance can 
have. The temperature at which the atoms of a substance have minimal or no kinetic energy. 
Acceleration - CORRECT ANSWER- Rate at which an object's velocity changes with time; 
the change in velocity may be in magnitude, direction, or both 
Air Resistance - CORRECT ANSWER- Friction or drag that acts on something moving 
through the air 
Ant...
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Praxis 5005 Elementary Education (Science) (2023/2024) Rated A+
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Praxis 5005 Elementary Education (Science) (2023/2024) Rated A+ Insulin A hormone secreted by the pancreas that regulates blood glucose levels 
Testosterone Steroid hormone used to make men more manly 
Estrogen Female sex hormone 
Progesterone secreted by the ovaries; prepares the uterus for pregnancy 
Solution Homogeneous mixture of two or more substances 
Volume The amount of space an object takes up 
Mass The amount of matter in an object 
Weight The force of gravity on an object 
Density Mas...
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MCAT AAMC practice exam Chem Phys Exam Questions and Answers 2024
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MCAT AAMC practice exam Chem Phys 
Exam Questions and Answers 2024 
What quantity of Compound 1 (483.5g) must be provided to prepare 100.00 mL of solution with 
a concentration equal to Ki (60.3uM)? -Answer-M=mol/v 
1 umol=0.000001 moles (1x10^-6) 
2.92mg 
If only [I] is increased, then [ESI] or [EI] increases. This is an example of: 
A. the Bose-Einstein Principle. 
B. the Heisenberg Uncertainty Principle. 
C. the Le Châtelier's Principle. 
D. the Pauli Exclusion Principle. -Answer-Solution: ...
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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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AS-level AQA Chemistry questions and answers
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AS-level AQA Chemistry questions and 
answers 
What is the charge of a proton? - ANSWERS +1 
What is the charge of a neutron? - ANSWERS 0 
What is the charge of an electron? - ANSWERS -1 
What is the mass of a proton? - ANSWERS 1 
What is the mass of a neutron? - ANSWERS 1 
What is the mass of an electron? - ANSWERS 1/1800 
What is an isotope? - ANSWERS Isotopes of an element are atoms with the same 
number of protons but different numbers of neutrons. 
Why do isotopes of an element all have t...
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AQA 2023 AS CHEMISTRY QUESTIONS WITH 100% CORRECT ANSWERS
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AQA 2023 AS CHEMISTRY QUESTIONS WITH 100% CORRECT 
ANSWERS 
Absolute temperature - ANSWERS Temperature measured in Kelvin 
Absolute zero - ANSWERS The lowest possible temperature theoretically achieveable - 
273.15 degrees celius or zero Kelvin 
Acceleration - ANSWERS The stage in mass spectrometry where positive ions are 
speeded up by an electric field 
Acid rain - ANSWERS Rain that has been acidified by pollutants such as sulfur dioxide 
Actual yield - ANSWERS Mass of product obtained in a ...
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MCAT AAMC practice exam Chem Phys with Complete Solutions
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MCAT AAMC practice exam Chem Phys 
with Complete Solutions 
What quantity of Compound 1 (483.5g) must be provided to prepare 100.00 mL of 
solution with a concentration equal to Ki (60.3uM)? -Answer-M=mol/v 
1 umol=0.000001 moles (1x10^-6) 
2.92mg 
If only [I] is increased, then [ESI] or [EI] increases. This is an example of: 
A. the Bose-Einstein Principle. 
B. the Heisenberg Uncertainty Principle. 
C. the Le Châtelier's Principle. 
D. the Pauli Exclusion Principle. -Answer-Solution: The corr...
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Mosby Exam Questions with Complete Solutions, A+
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An injection set that includes a needle with plastic wings attached is called: 
 
A. large bore. 
 
B. butterfly. 
 
C. contrast agent injecting set. 
 
D. sterile tray. 
b 
X-rays travel as bundles of energy called: 
 
A. energy waves. 
 
B. phasers. 
 
C. electromagnetic bursts. 
 
D. photons. 
d 
The increase in brightness caused by acceleration of the electrons in the image intensifier is called: 
 
A. flux gain. 
 
B. minification gain. 
 
C. total brightness gain. 
 
D. image gain. 
a 
A p...
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NLN PAX EXAM - SCIENCE QUESTIONS AND ANSWERS 2024
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Law of Conservation of Mass 
Matter is not created nor destroyed in any chemical or physical change 
 
 
 
E= mc^2 
Energy (e)= mass(m) x speed of light (c) 
-basis is the law of conservation of mass and energy 
 
 
 
significant figures (sig figs) 
all the digits that are known in a measurement, plus the last digit that is estimated 
 
 
 
Kelvin scale 
theoretical temperature that is the lowest called absolute zero 
 
 
 
absolute zero 
The temperature at which no more energy can be removed fr...
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