In this Powerpoint, we cover questions and answers from a variety of different past papers. The answers are given in detail. Use this resource as a supplement in your chemistry class. These questions can be used to review particular topics, given as a formative/summative assessment, or an in class assignment. Topics covered include: Electrochemistry Percetage conversions Chemical equations and concentration calculations. (Yield) Chemical Kinetics Equilibrium reactions Chemical bonding Electronic configuration Thermodynamics Organic Chemistry Column separations Polymers Industrial chemistry …& so much more. Here are some typical questions you will find: QUESTION 6 Acid rain has a pH that is low enough to cause environmental damage. (a) NO2 is an atmospheric pollutant that reacts with rainwater to form acid rain. (i)(1) Write an equation for the reaction of NO2 with rainwater. 2NO2 + H2O → HNO2 + HNO3 (2) Hence, explain why the pH of acid rain is lower than that of rainwater. •ionises completely in water •acid has formed •HNO3 → NO3- + H+ •[H+] increases so pH decreases (ii) Identify another atmospheric pollutant that can contribute to the formation of acid rain. SO2, SO3 NO We hope you use this resource to aid your learning and teaching Kind Regards ENTER - ONE

In this Powerpoint, we cover the theory, questions and answers on Rates of chemical reactions. Topics include: General reaction rates Graphical analysis of rates of reactions Measuring rates of reactions experimentally Thermodynamics Energy diagrams Collision Theory Factors that affect the reaction rate

This Powerpoint is the ultimate guide to Equilibrium and Yield. It contains all the theory, examples, questions and answers that you will need. Topics covered include: Reversible and irreversible reactions Equilibrium and rates Graphical interpretations of Equilibrium & rates Equilibrium positions Equilibrium constant Kc Le Chateliers Principle Pressure, Temperature & Concetration effects on Equilibrium Catalyst Yield Calculations This Guide contains many real world application problems on equilibrium This will be the only guide you will ever need! Kind Regards ENTER - ONE

In this Powerpoint, we cover applications and optimisation of technological processes within the chemical industry. Topics covered include: Raw Materials, waste products and catalysts Contact Process Haber Process Yield Reaction conditions Reaction flow charts This Powerpoint contains all the theory, examples, questions and answers. There is no extra work to be done. Simply project this in your class and you’re good to go! Enjoy this resource. Kind Regards ENTER - ONE

This Powerpoint covers the chemistry on soil Topics include: Composition of soils Nutrients in soil and concentrations Nitrogen cycle Ammonification Nitrification Fertilizers Eutrophication This resource contains all the theory, questions and answers. There are numerous application questions with the answers provided. Kind Regards ENTER - ONE

This resource contains the second part to managing energy resources Topics Covered include: Combustion reactions Molar Enthalpy calculations Calorimetry Reaction diagrams and energy calculations Alternative sources of energy (photovoltaic cells, proton exchange membrane) Electrochemistry Vanadium flow battery There are many real world application examples here. Kind Regards ENTER - ONE

This Powerpoint covers lessons on Managing energy resources Topics covered include: Carbon Cycle Fossil Fuels Different energy resources - advantages and disadvantages Case studies Forms of energy (Hydro solar wind nuclear) Biodiesel Thermchemistry Combustion reactions Pollution We hope you enjoy using this resouce. Kind Regards ENTER - ONE

This resource is a formative/summative assessment Total marks is 80 Topics covered include: Number concepts (multiples, factors, prime factorization) Roots, squares and cubes Substitution Algebraic simplification Advanced algebraic simplification The answers are included. In order to generate the question paper, simply delete the answers in red We hope you enjoy this assessment Kind Regards ENTER - ONE

This resource is a formative/summative assessment. Total marks is 50 Topics covered include: Probability Possibility diagrams Sequences and series Venn Diagram Linear Algebra and co-ordinate geometry Algebraic manipulation Pythagoras Theorem Kind Regards ENTER - ONE

This resource is a formative/summative assessment. Total marks is 40 Topics covered include: Number concepts (Lowest common multiple, factors, highest common factor, prime numbers) Algebraic expressions Lines shapes and angles The answers are included in this assessment. To generate the question paper, simply delete the answers in red. We hope you enjoy this resource. Kind Regards ENTER - ONE

This resource is a formative/summative assessment. Topics covered include: Pythagoras theorem Pythagoras theorem and applications Similar triangles Congruent triangles Univariate data Factorization of expressions The answers are included in this resource. In order to generate the question paper, simply delete the answers in red We hope you enjoy using this assessment Kind Regards ENTER - ONE

This resource is a summative/formative assessment on collecting, organizing and displaying data. Topics covered include: Categorical, discrete, continuous, quantitative and qualitative data Tally tables Bar graph construction and labels Line graph construction and labels The answers are included in this resource. In order to generate the question paper, simply delete the answers in red. We hope you enjoy this assessment Kind Regards ENTER - ONE

This resource is a formative/summative assessment on geometry The total marks is 58. Topics covered include: Definition of complementary, supplementary Calculation of unknown angles and reasons Types of triangles and definitions Triangle rules and applications The resource contains questions and answers together with diagrams. To generate the question paper, simply delete the answers in red. We hope you enjoy using this assessment Kind Regards ENTER - ONE

This resource is a formative/summative assessment. Total marks is 40 Topics covered include: Drawing a fully labelled graph Calculating rfractions Algebraic manipulation and transforming formulae Perimeter, area and volume This test contains the questions and answers. To generate the question paper, simply delete the answers in red. We hope you enjoy this resource. Kind Regards ENTER - ONE

This is a formative/summative assessment on Set Theory & Venn diagrams. The assessment is out of 44 marks It covers: Basic set notation Interpretation of set builder notation Elements of sets Venn diagrams and interpretations Writing recurring decimals as fractions The answers are included in this assessment. To generate the question paper, simply delete the answers in red. We hope you enjoy using this resource. Kind Regards ENTER - ONE

This resource contains 95 questions and answers regarding scientific notation. It covers: Converting numbers to and from scientific notation Addition & subtraction Multiplication & division We hope you enjoy using this resource. Kind Regards ENTER - ONE

This resource is a financial mathematics formative/summative assessment. The total marks is 40. The mark scheme for each question is in brackets on the right hand side. It covers: Percentage increases and decreases Discounts VAT calculations Value of investments Simple interest Compound interest Credit card calculation Loan repayments This assessment contains the question and answers. To generate the question paper, simply delete the answers in red. We hope you enjoy using this assessment Kind Regards ENTER - ONE

This resource is a formative or summative assessment. The total marks is 44. It covers the following topics: Scientific Notation Basic unit conversions Simplifying exponents Absolute value calculations Radical expressions This test contains the questions and answers. To make the question paper, simply delete the answers written in red. I hope you enjoy this resource. Kind Regards ENTER - ONE

This resource contains topics on bivariate data and correlations Topics include: Scatter plots Predictions Descriptions and interpretations Questions and answers. This resource can be used as a quiz, summative/formative assessment. The slides are designed to be fun and engaging with detailed explanations given. Kind Regards ENTER - ONE

This resource contains the complete guide to grade 6 percentages. Topics include: Introduction to percentages Converting fractions to percentages and vice versa Converting decimals to percentages and vice versa Comparing quantities Finding percentages of quantities Percentages regarding money Profit and loss Discount Simple interest All you need to do is project this powerpoint onto your screen and you’re good to go! Theory, examples, and numerous questions and answers are all included. Kind Regards ENTER - ONE