Reactants break - Study guides, Class notes & Summaries
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GCSE AQA Triple Chemistry Paper 1 2024/2025 QUESTIONS AND CORRECT ANSWERS ALREADY PASSED
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GCSE AQA Triple Chemistry Paper 1 
2024/2025 QUESTIONS AND CORRECT 
ANSWERS ALREADY PASSED 
C8 1) What is required for a reaction to happen? - answer a successful collisions 
C8 2) How can you use a graph to calculate the rate of reaction? - answer calculate 
gradient (on a curve tangent) 
C8 3) What four things can speed up the rate of reaction? - answer temperature, 
concentration, surface area and catalyst 
C8 11) What formula is used to calculate the rate of reaction? - answer amount of ...
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CWRU-BIO215-Exam 2 (Graded A+ actual test)
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energy - capacity to do work 
Compare potential energy and kinetic energy. Classify different energy forms into one of these two 
categories - potential energy is the possibility to do work: 
-chemical potential 
-concentration gradient 
-gravitational 
-stored mechanical 
kinetic energy 
-electrical 
-sound 
-radiant 
-thermal 
-motion 
Explain why cells need energy? Describe the types and examples of cellular work. - 1. synthetic 
work 
2. mechanical work 
3. concentration work 
4. electrical ...
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BIOLOGY EXAM 1 Duquesne University Questions And Answers With Verified Solutions
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The Scientific Method - A logical, systematic approach to the solution of a scientific problem. 
What is science? - The systematic approach to answering questions; step by step process that is 
logical and rational by collecting data thru experimentation 
steps of scientific method - 1. observation 
2. question 
3. hypothesis (that is testable) 
4. test/experiment 
5. conclusion 
conclusion of scientific method - accept hypothesis OR reject hypothesis and make a new 
hypothesis 
2 groups of an e...
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Practicals Chemistry AQA A-level Rated A+
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Practicals Chemistry AQA A-level Rated A+ 
Required Practical 1 - titration and making a standard solution 
Making a standard solution 1. weigh the required mass of solid using a sample bottle on a 2 dp balance. 
2. transfer the solid into a beaker using distilled water to wash it out- preventing any solid remaining in the sample bottle. 
3. reweigh the sample bottle and work out the difference. 
4. Add 100cm3 of distilled water to the beaker to dissolve the solid (small volume of water) using a...
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CHEM 162 Quiz 1 2023-2024 (100% Error-free Answers)
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Combustion is what type of change? correct answers chemical change 
 
What is combustion? correct answers chemical reaction where add oxygen 
 
Combustion aka correct answers oxidation 
 
Oxidation correct answers add oxygen 
 
Combustion of raffinose: 
 
C18H22O16 + O2 -> CO2 + H2O 
 
In this formula, are the reactants or products stronger? correct answers product bonds 
 
Combustion of raffinose: 
 
C18H22O16 + O2 -> CO2 + H2O 
 
net energy? correct answers net exothermic [net energy o...
And that's how you make extra money
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AQA CHEMISTRY A LEVEL WITH COMPLETE SOLUTIONS covalent bond - ANSWER-a shared pair of electrons between non-metal elements co-ordinate bond - ANSWER-a shared pair of electrons where both electrons are supplied by one atom repulsion in shapes of molecu
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AQA CHEMISTRY A LEVEL WITH COMPLETE SOLUTIONS 
 
 
covalent bond - ANSWER-a shared pair of electrons between non-metal elements 
 
co-ordinate bond - ANSWER-a shared pair of electrons where both electrons are supplied by one atom 
 
repulsion in shapes of molecules - ANSWER-Lone pair-lone pair > lone pair-bonding pair > bonding pair-bonding pair 
 
electronegativity - ANSWER-the power of an atom to attract the pair of electrons in a covalent bond 
 
hess' law - ANSWER-Total enthalpy chang...
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OCR A LEVEL ORGANIC CHEMISTRY YEAR 12 WITH VERIFIED QUESTIONS AND ANSWERS
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OCR A LEVEL ORGANIC CHEMISTRY YEAR 12 WITH VERIFIED 
QUESTIONS AND ANSWERS 
 
What is the melting and boiling points of alkanes like? - ANSWER--as chain length 
increases so does the strength of the intermolecular forces as there is greater 
surface area for contact between molecules and hence stronger london forces 
and therefore the melting/boiling points are highr for longer chain. 
What is a structura/chain isomer? - ANSWER--Same molecular formula but a 
different structural formula 
Wh...
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MCAT General Chemistry (Princeton Review) Questions and Answers | Latest Update | 2024/2025 | Already Passed
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MCAT General Chemistry (Princeton 
Review) Questions and Answers | Latest 
Update | 2024/2025 | Already Passed 
 
What is the role of a Lewis acid and a Lewis base in a chemical reaction? 
 
 A Lewis acid is an electron pair acceptor, while a Lewis base is an electron pair donor. They 
interact to form a coordinate covalent bond where the base donates an electron pair to the acid. 
 
How does the concept of bond enthalpy relate to the strength of a chemical bond? 
 Bond enthalpy (or bond dissoci...
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Test Bank for Memmlers Structure and Function of the Human Body 12th Edition by Cohen | Complete Guide A+
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Test Bank Memmlers Structure and Function of the Human Body 12th Edition Cohen Chapter 01: Introduction to the Body MULTIPLE CHOICE 1. The word derived from two word parts that mean ―cutting apart‖ is a. physiology b. homeostasis c. anatomy d. dissection ANS: C DIF: Memorization REF: p. 3 OBJ: 1 TOP: Introduction 2. The study of how the body functions is called a. physiology b. homeostasis c. anatomy d. dissection ANS: A DIF: Memorization REF: p. 3 OBJ: 1 TOP: Introduction 3. The correct seq...
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Biology: The Core 3rd Edition Exam Questions and 100% Correct Answers| Eric J. Simon
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***Download Test Bank Immediately After the Purchase. Just in case you have trouble downloading, kindly message me, and I will send it to you via Google Doc or email. Thank you*** 
Biology: The Core 3rd Edition Exam Questions and 100% Correct Answers| Eric J. Simon 
The Test Bank for Biology: The Core, 3rd Edition by Eric J. Simon is a comprehensive study tool designed to aid in the understanding of fundamental concepts in biology. It contains a series of questions and answers that align with th...
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