Avogadro constant Samenvattingen, Aantekeningen en Examens
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AQA A Level Chemistry Definitions questions and answers latest top score.
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AQA A Level Chemistry Definitions questions and answers latest top score. 
 
 
 
 
 
 
 
 
 
 
 
 
Relative Atomic Mass - ANS.The weighted mean mass of an atom of an element relative to 1/12 of the mass of one atom of carbon-12 
 
First Ionisation energy - ANS.The energy required to remove an electron from each atom in one mole of gaseous atoms 
 
Acid - ANS.A species that is a proton donor 
 
Activation Energy - ANS.The minimum energy required to start a reaction by the brea...
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AQA A-Level Chemistry - Amount of Substance
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AQA A-Level Chemistry - Amount of Substance 
Relative Atomic Mass 
The average mass of an atom of an element, compared to that of the mass 
of 1/12th of the average mass of an atom of carbon-12 
Relative Molecular Mass 
one atom of carbon-12 
Avogadro Constant 
The average mass of one molecule compared to 1/12th of the mass of 
The number of particles in one mole of an atom: 6.022 x 10^23 
Solvent 
Solute 
Solution 
A liquid that can have a substance dissolved into it 
A...
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Test Bank for Chemistry in Focus A Molecular View of Our World 5th Edition by Nivaldo
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Chapter 1—Molecular Reasons 
 MULTIPLE CHOICE 
1. Which of these is the best definition of matter? 
a. The pull of gravity on an object. 
b. Anything that has weight and volume. 
c. Anything that has mass and occupies space. 
d. Anything that is directly proportional to weight. 
e. The measure of the amount of space an object occupies. 
ANS: C PTS: 1 
2. Which of these statements is correct? 
a. The amount of carbon on earth is essentially constant. 
b. The amount of carbon on earth fluctuates...
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Student Exploration: Moles GIZMO ( ALL ANSWERS CORRECT ) UPDATED 20222023
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Student Exploration: Moles Vocabulary: atomic mass, Avogadro constant, conversion factor, dimensional analysis, mole, molar mass, molecular mass, scientific notation, significant figures, unified atomic mass unit Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. In the image to the right, note a dozen eggs, a dozen donuts and a dozen roses. How many of each item do you have? 2. Would a dozen of each object have the same mass? 3. Suppose you have a dozen carbon atoms, a dozen gold a...
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AQA A-Level Chemistry Paper 1 – Inorganic and Physical Chemistry Predicted Paper 2023 with marking scheme attached.
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AQA A-Level Chemistry 
Paper 1 – Inorganic and Physical Chemistry Predicted Paper 2023 with marking scheme attached. 
 
Name …………………………………………………………………… 
Date ………………… 
 
 
2 hours allowed 
You should have access to the AQA insert (periodic table and data sheet) to help with answering the questions. 
 
 
 
Grade boundaries 
These are VERY rough guesses! Getting a C on this paper does not guarantee you the same mark in the exam. ...
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AS & A LEVEL PHYSICS 9702 REVISION NOTES WELL ORGANIZED
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1.	1.1 Physical quantities 
b)(1) make reasonable estimate of Fre- quency Of Audible Sound Wave: 
 
 
 
 
 
 
2.	1.1 Physical quantities 
b)(2) make reasonable estimate of The Wavelength, in nm, of Ultraviolet Radia- tion: 
 
 
 
3.	1.1 Physical quantities 
b)(3) make reasonable estimate of The Mass Of The Plastic 30cm Ruler: 
 
 
 
4.	1.1 Physical quantities 
b)(4) make reasonable estimate of Den- sity Of Air At Atmospheric 
 
 
 
 
 
 
5.	1.1 Physical quantities 
b)(5) make reasonable estimate...
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AQA AS CHEMISTRY Paper 1 Inorganic and Physical Chemistry MAY 2023
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AQA 
 
 
 
 
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 insert (enclosed) 
•	a ruler with millimetre measurements 
•	a scientific calculator, which you are expected to use where appropriate. 
 
Instructions 
•	Use black ink or black ball-point pen. 
•	Fill in the boxes at the top of this page. 
•	Answer all questions. 
...
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past papers questions chemistry - November 2020 AS paper 1, 2017 paper 2 A level, paper 1 2019 A level Questions and Answers 100% Pass | Updated 2024
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past papers questions chemistry - November 
2020 AS paper 1, 2017 paper 2 A level, paper 1 
2019 A level Questions and Answers 100% 
Pass | Updated 2024 
This question is about atomic structure.There is a general trend for an increase in 
ionisation energy across Period 3. 
Give one example of an element that deviates from this trend. Explain why this 
deviation occurs. - Correct Answer ️️ -Aluminium / Al(Outer) electron in (3)p orbital / 
sub-shell (level) 
(3p) higher in energy / slightly ...
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GCSE Edexcel Chemistry 2023 Exam Questions And Correct Answers
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GCSE Edexcel Chemistry 2023 Exam Questions And Correct Answers 
 
Acid - ANSWER a substance with a PH of less than 7 
a substance that forms H+ ions in water 
 
Acid Rain - ANSWER acidic rainwater that forms when sulphur dioxide dissolves in rain droplets 
 
Activation Energy - ANSWER the minimum amount of energy that reactant particles must have when they collide in order to react 
 
Addition Polymer - ANSWER a large molecule made from alkene monomers which bond together...
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AS chemistry definitions (graded A)|100% sure pass
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Molecular ion 
Two or more atoms covalently bonded with an overall charge 
 
 
 
Avogadro constant 
Number of atoms in 12.000g of carbon-12
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