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2025 AQA PSYCHOLOGY Mark scheme (Specimen Material Second Set) Paper 2 BUNDLE Social Context and Behavior Question Paper & Mark Scheme (Merged)
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diciembre 2025
1 Exam (elaborations) 2025 AQA PSYCHOLOGY Mark scheme (Specimen Material Second Set) Paper 2 Social Context and Behavior Question Paper & Mark Scheme (Merged) 2 Exam (elaborations) AQA Chemistry A-Level - Atomic Structure QP Study Guide & Marking Scheme 2025 | 100% Correct
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Examen

AQA Chemistry A-Level - Atomic Structure QP Study Guide & Marking Scheme 2025 | 100% Correct
Disponible en un paquete

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25

diciembre 2025

2025/2026

A+
Disponible en un paquete
AQA Chemistry A-Level - Atomic Structure QP Study Guide & Marking Scheme 2025 | 100% Correct
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Examen

AQA Chemistry A Level Mark scheme Study Guide 2025
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junio 2025

2024/2025

A+
Define the term relative atomic mass (2 marks). - Correct Ans-. 1. The average mass of an atom of an element (average mass of all isotopes of an element) 2. Compared to 1/12th the mass of an atom of carbon-12 Describe how molecules are ionised using electrospray ionisation (4 marks). - Correct Ans-1. Sample dissolved (in a volatile solvent) (allow named solvent eg water or methanol) 2. (injected through) a needle or nozzle or capillary and at high voltage/4000 volts or high...
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AQA A LEVEL CHEMISTRY PAPER 1 Questions and Answers 100% Solved
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14

abril 2025

2024/2025

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AQA A LEVEL CHEMISTRY PAPER 1 Questions and Answers 100% Solved Hydrogen fuel cell advantages and disadvantages + less pollution + greater efficiency (less heat energy wasted) - expensive - safety issues storing and transporting H2 - H2 produced by electrolysis of water (uses electricity) What happens if current flows in an electrochemical cell? -reactions occur separately at each electrode -voltage falls to zero as reactants used up
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Examen

AQA A-Level Chemistry - Amount of Substance, Amount of Substance - AQA ALevel Chemistry Questions and Answers
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abril 2025

2024/2025

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AQA A-Level Chemistry - Amount of Substance, Amount of Substance - AQA ALevel Chemistry Questions and Answers Why is Percentage Yield never 100%? -Loss by mechanical transfer (e.g. when moving from one container to another) -Loss during separation (e.g. filtration) -Reaction not completing -Side reaction Calculating Moles of a Solvent Dissolved in a Solution Moles = (solution volume(cm^3) x concentration(mol/dm^3))/1000
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AQA A LEVEL Chemistry AQA A LEVEL Chemistry Questions with Complete Solutions
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abril 2025

2024/2025

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AQA A LEVEL Chemistry Questions with Complete Solutions Oxidising agent for oxidation of alcohols Acidified potassium dichromate Orange (Cr2O7 2-) to green(Cr 3+) What happens when an unsymmetrical alcohol undergoes and elimination reaction A mixture of isomeric products are produced
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AQA A Level Chemistry Definitions Questions with Complete Solutions
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abril 2025

2024/2025

A+
AQA A Level Chemistry Definitions Questions with Complete Solutions Disproportionation The oxidation and reduction of the same element in a redox reaction Dynamic Equilibrium The equilibrium that exists in a closed system when the rate of the forward reaction is equal to the rate of the reverse reaction E/Z Isomerism A type of stereoisomerism in which different groups attached to each carbon of a C=C double bond may be arranged differently in space because of the restricted rotation of ...
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AQA Chemistry A level Questions and Answers 100% Solved
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79

abril 2025

2024/2025

A+
AQA Chemistry A level Questions and Answers 100% Solved what is a lewis acid electron pair acceptor (metal ion) what is a lewis base electron pair donor (ligand) colour of hexaaqua iron (II) green colour of hexaaqua copper (II) blue
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