Manganate Study guides, Revision notes & Summaries

AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022 *JUN* IB/M/Jun22/E7 7404/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 Section B TOTAL 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...

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...

AS CHEMISTRY Paper 2 Organic and Physical Chemistry 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. • You must answer the questions in the sp...

What is the electron configuration of Chromium? correct answers[Ar] 3d5 4s1 What is the electron configuration of Copper? correct answers[Ar] 3d10 4s1 How can Iron (II) be oxidised to Iron (III)? correct answersBy Potassium Manganate in an acidic solution What is a heterogeneous catalysis? correct answersCatalysis where the reactants and catalyst are in different physical states What is a homogenous catalysis? correct answersWhen catalysts and reactants are in the same phase, the rea...

AS CHEMISTRY Paper 2 Organic and Physical Chemistry 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. • You must answer the questions in the sp...

This resource includes exam questions from both Chemistry A and Chemistry B. It is not designed as a topic test but is instead intended as a document to support the teaching and learning of Module 1 – Development of practical skills in chemistry. 1. A solid organic compound can be purified by recrystallisation. Which statement(s) about recrystallisation is/are true? 1 The organic compound is more soluble in hot solvent. 2 The hot solution is cooled before the purified organic compo...

Thermal Cracking - correct answer - High temperatures (1000C) - High pressure (up to 70atm) - Produces ALKENES - E.g. ethene --> polyethene Catalytic Cracking - correct answer - Zeolite catalyst - Slight pressure - High temperature (450C) - Produces AROMATICS Reformation - correct answer Alkanes --> cycloalkanes/ aromatic hydrocarbons - Straight chain alkanes are a lot more likely to...

AQA A-LEVEL CHEMISTRY PAPER 2MARKING SCHEME JUNE 2022 AQA A-LEVEL CHEMISTRY PAPER 2MARKING SCHEME JUNE 2022 A-level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Mark scheme June 2019 Version: 1.0 Final *196A74052/MS* Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme in...

This resource includes exam questions from both Chemistry A and Chemistry B. It is not designed as a topic test but is instead intended as a document to support the teaching and learning of Module 1 – Development of practical skills in chemistry. 1. A solid organic compound can be purified by recrystallisation. Which statement(s) about recrystallisation is/are true? 1 The organic compound is more soluble in hot solvent. 2 The hot solution is cooled before the purified organic compo...

Q1. (a) (i)M1 (Compounds / molecules with) the same structural formula2 Penalise M1 if ‘same structure’ or ‘different structural / displayed formula’. M2 with atoms / bonds / groups arranged differently in space OR atoms / bonds / groups with different spatial arrangements / different orientation Ignore references to ‘same molecular formula’ or ‘same empirical formula’. Mark independently. (b)M1 Br2 OR bromine (water) OR bromine (in CCl4 / organic solvent)1 If M1, has no r...